援兵 (yuánbīng): reinforcements

Measure Word

一批援兵 pī

前线部队请求派遣援兵。

Qiánxiàn bùduì qǐngqiú pàiqiǎn yuánbīng.

The front-line troops requested that reinforcements be sent.

援兵及时赶到，扭转了战局。

Yuánbīng jíshí gǎndào, niǔzhuǎn le zhànjú.

The reinforcements arrived in time and turned the tide of battle.

memory

援 means to help/rescue (援助), and 兵 means soldiers. 援兵 are literally 'helping soldiers' — troops sent to rescue those in need.

援 yuán

兵 bīng