There is a duck under the tree.

树下有一只鸭子。

youdao

The boy wanted to duck under water .

这个男孩想潜入水中。

youdao

Visitors duck under drying laundry, washed by hand under the cold tap. If it weren't for my Internet connection, life here would be the same as it was centuries ago.

人们用晾衣绳晾衣服，用冷水手洗衣服，如果不是我连着网络，这里的生活简直就跟几个世纪前一模一样。

youdao

Actually, he said, he was prepared to pay fare for the two of them when the attendant said his daughter could just duck under.

WSJ: Little Ones, the Subway and the Law

Because as it now stands, the decision will probably have to be made in a lame-duck session, under an old Congress.

ECONOMIST: America��s budget woes

Bend your knees and duck down, rolling your head in a 'U'shape under the punch from 'inside' to 'out.

BBC: DEFENCE