The small boat was bobbing on the sea.

小在海里上摆动。

A little bird was bobbing its head up and down.

一只小鸟把头上快速摆动着。

The small boat was bobbing on the rough water of the lake.

小在汹涌的湖面上摆动。

The piston slides noiselessly up and down.

这个活塞上活动，没有响声。

The man was drenched to the skin.

这人全身上都湿透了。

As actors, I would say they were on a par.

作为演员来讲，我觉得他们不相上。

When a fish bites the hook, the float bobs.

当鱼上钩时, 鱼漂上跳动。

John is on equal terms with Dick, either in ability or in character.

约翰与迪克无论能力或品质都不相上。

People up and down the country are giving money to the earthquake appeal.

全国上的人都在为地震捐钱。

I could see his ginger head bobbing about.

我可以看到他姜黄色的脑袋在上移动。

On an oscilloscope, you can see an electrical current oscillate up and down.

在示波器上面你可以看到一股电流上振动。

Suprahepatic inferior vena cava was anastomosed end-to-end with running suture.

肝上腔静脉用端端吻合连续缝合的方法。

I can’t read it if it’s upside-down.

若把它上翻转过来,我便看不懂了。

This word has a special contextual meaning here.

本词在这里具有与上文有关的义。

Piscine on-line bobber is vibrating up and down, enrol all the way in water.

鱼线上的浮子正上颤动，在水里一路一招。”

I could see the beam of his flashlight waving around in the dark.

我可以看到他的手电筒光在黑暗中上舞动。

With another 100 metres to go, Jones and Saville are nip and tuck.

赛跑还剩100米时，琼斯和萨维尔不相上。

Shows the trestle-trees, cross-trees, and the eye bolts for the futtock shrouds.

树状支架，树状十字及为连接上桅的铁索的眼螺栓。

After the exams, the teacher gave all borderline cases a spoken test.

考试后老师对那些在及格线上的学生进行了一次口试。

"She, as a consultant, commutes from Cambridge to London every day."

她作为顾问每天乘火车上班来往于剑桥和伦敦之间。