pound|pounded|pounding|pounds

我妈妈想买一磅肉来做晚餐。

My mum wants to buy a ___pound of meat for dinner.

一磅大约等于454克。

One ___pound is approximately equal to 454 grams.

安的宝宝出生时重八磅半。

Ann's baby weighed eight and a half ___pounds at birth.

当我上台领奖时，我能感觉到我的心在怦怦直跳。

I could feel my heart ___pounding as I went on stage to collect the prize.

这座城市在战争期间被炸成了废墟。

The city was ___pounded to rubble during the war.

他用力敲门，要求让他进去。

He ___pounded on the door demanding to be let in.