1、lock up

把…锁起妥藏

Give away any food you have on hand, or lock it up and give the key to the neighbours.

把手头的所有食物都送给别人，或者把食物藏好锁起，然后将钥匙交给邻居。

Control of materials could be maintained by locking up bombs.

把炸弹锁起妥藏可实现对物资的控制。

把…关入监狱

Mr Milner persuaded the federal prosecutors not to lock up his client.

米尔纳先生说服联邦检察官不把他的当事人关起来。

You are mad, Isabel. You should be locked up.

你疯了，伊莎贝尔。应该把你关起来才是。

锁好（建筑物或汽车的）门窗

Don't forget to lock up.

别忘了锁好门窗。

Leave your car here and lock it up.

把车停在这里锁好。

2、common

常见的;普遍的

His name was Hansen, a common name in Norway.

他的名字叫汉森，在挪威是一个常见的名字。

Oil pollution is the commonest cause of death for seabirds.

石油污染是造成海鸟死亡最常见的原因。

共有的;共同的

Moldavians and Romanians share a common language.

摩尔达维亚人和罗马尼亚人使用同一种语言。

Such behaviour is common to all young people.

这种行为在年轻人中司空见惯。