He went down on one knee and asked her to marry him.

他单膝跪下向她求婚。

《牛津词典》

The miserable Hatter dropped his teacup and bread-and-butter, and went down on one knee.

可怜的帽商丢掉了茶杯和黄油面包，单膝跪下。

youdao

Try getting down on one knee.

那就跪下来试试看把。

youdao

"Just kind of uh, just stepped off the cliff and said 'okay where's that microphone.' Made a short couple of comments and then put the mic down and dropped down on one knee and.

VOA: standard.2010.02.27

One day,he was sitting on his father's knee.

VOA: special.2009.02.21

He gets down on one knee to rifle through a 70-liter Rubbermaid Brute container filled with spatulas, combs and markers.

FORBES: Rebirth of a salesman

He gets down on one knee to rifle through an 18-gallon Rubbermaid Brute container filled with spatulas, combs, hair scrunchies and markers.

FORBES: Rebirth of a Sales Man

Mark, a master chief petty officer and the ranking noncommissioned officer on the operation, crouched on one knee beside the open door of the lead helicopter.

NEWYORKER: Getting Bin Laden