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• adj. 有義務的；受約束的；裝有封面的
• vt. 束縛；使跳躍
• n. 范圍；跳躍
• vi. 限制；彈起

1.彈，跳，擬聲詞，同bounce.

2.邊界，束縛，詞源同bind.

bound

bound: English has no fewer than four separate words bound. The only one which goes back to Old English is the adjective, meaning ‘obliged’ or ‘destined’, which comes from the past participle of bind (in Old English this was bunden, which survives partially in ‘bounden duty’). Next oldest is the adjective meaning ‘going or intending to go’ [13]. Originally meaning ‘ready’, this was borrowed from Old Norse búinn, the past participle of búa ‘prepare’, which derived from the same ultimate source (the Germanic base *bū- ‘dwell, cultivate’) as be, boor, booth, bower, build, burly, bye-law, and byre.

The final -d of bound, which appeared in the 16th century, is probably due to association with bound ‘obliged’. Virtually contemporary is the noun bound ‘border, limit’ [13]. It originally meant ‘landmark’, and came via Anglo-Norman bounde from early Old French bodne (source also of Old French borne, from which English got bourn, as in Hamlet’s ‘undiscovered country from whose bourn no traveller returns’).

Its ultimate source was medieval Latin bodina, perhaps from a prehistoric Gaulish *bodina. Boundary [17] seems to have been formed from the dialectal bounder, an agent noun derived from the verb bound ‘form the edge or limit of’. Finally, bound ‘leap’ [16] comes from Old French bondir. It originally meant ‘rebound’ in English (rebound [14] began as an Old French derivative of bondir), but this physical sense was a metaphorical transference from an earlier sense related to sound.

Old French bondir ‘resound’ came from Vulgar Latin *bombitīre ‘hum’, which itself was a derivative of Latin bombus ‘booming sound’ (source of English bomb).
=> band, bend, bind, bond, bundle; be, boor, booth, bower, build, burly, byre, neighbour; boundary, bourn; bomb, rebound

bound (v.1)

"to form the boundary of," also "to set the boundaries of," late 14c., from bound (n.). Related: Bounded; bounding.

bound (v.2)

"to leap," 1580s, from Middle French bondir "to rebound, resound, echo," from Old French bondir "to leap, jump, rebound; make a noise, sound (a horn), beat (a drum)," 13c., ultimately "to echo back," from Vulgar Latin *bombitire "to buzz, hum" (see bomb (n.)), perhaps on model of Old French tentir, from Vulgar Latin *tinnitire.

bound (adj.1)

"fastened," mid-14c., in figurative sense of "compelled," from bounden, past participle of bind (v.). Meaning "under obligation" is from late 15c.; the literal sense "made fast by tying" is the latest recorded (1550s).

bound (adj.2)

"ready to go," c. 1200, boun, from Old Norse buinn past participle of bua "to prepare," also "to dwell, to live," from Proto-Germanic *bowan (cognates: Old High German buan "to dwell," Old Danish both "dwelling, stall"), from PIE root *bheue- "to be, exist, dwell" (see be). Final -d is presumably through association with bound (adj.1).

bound (n.1)

"limit," c. 1200, from Anglo-Latin bunda, from Old French bonde "limit, boundary, boundary stone" (12c., Modern French borne), variant of bodne, from Medieval Latin bodina, perhaps from Gaulish. Now chiefly in out of bounds, which originally referred to limits imposed on students at schools.

bound (n.2)

"a leap, a springing," 1580s, from bound (v.2).

1. They are bound to take time to readjust after a holiday.

他們肯定需要時間重新適應假期結束后的生活。

來自柯林斯例句

2. There are bound to be teething problems with something so new.

如此新鮮的事物剛開始必然會有些問題。

來自柯林斯例句

3. The ethnic populations are so intermingled that there's bound to be conflict.

各民族人口如此雜居，肯定會發生沖突。

來自柯林斯例句

4. I'll show it to Benjamin. He's bound to know.

我會把它給本杰明看，他肯定會知道。

來自柯林斯例句

5. His comments are bound to add fuel to the debate.

他的話必將為爭論推波助瀾。

來自柯林斯例句