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1·Several moments went by, one of the big Jacks pawed at the ground with his hooves and another looked behind him, as if to check the rear for a surprise attack.

过了好一会儿，其中一只大公驴用蹄子刨地，另一只回头望向他，似乎在检查后面那只是否会突然袭击。

2·The main-beams of the lower deck had to be shored with screw-jacks forthwith.

下层甲板的主梁必须立即用螺旋千斤顶进行支撑。

3·She's complaining about the jacks.

——她在抱怨厕所。

4·A pair of Smilin 'Jacks.

你们俩是一对微笑杰克。

5·He jacks up his shed.

他把他的小屋整理好。

6·The crews go floor by floor using temporary jacks.

工作人员一层一层地使用临时千斤顶。

7·Do jumping jacks. Try a few sets right in your room.

可以做分腿跳。在你的房间做上几组。

8·Using hydraulic jacks, the entire building can be raised.

水压千斤顶会把整个建筑全盘托起。

9·Andrew jacks on also had a pipe made from a corncob.

安德鲁·杰克逊也有一个用玉米棒子芯制成的烟斗。

10·These lads were playing a form of jacks after school.

这些小伙子们放学后在玩一种游戏。

(1)jack in停止；辞掉；放弃；破坏服务器安全的行为（黑客常用语）

(1)jack up提高；顶起，用千斤顶托起

(1)hydraulic jack液压千斤顶；液压起重器

(1)jack johnson杰克·约翰逊（第一位黑人世界重量级拳王）；杰克·约翰逊（美国冲浪手和民谣歌手）

(1)jack the ripper开膛手杰克（英国伦敦系列凶杀案的凶手绰号）

(1)jack welch杰克·韦尔奇（前通用电气董事长兼CEO）；杰克·韦尔奇（美国插图画家）