援军

tā men pò qiè xū yào yuán jūn

他们迫切需要援军。

They need urgent reinforcements.

wǒ men de yuán jūn jiù zài hòu fāng

我们的援军就在后方。

Our reinforcements were available just behind the lines.

lái le duō shao zhōng guó yuán jūn

来了多少中国援军？

How many Chinese reinforcements are coming?