pitch in ⇒ 厂长亲自上阵抓生产。 Chǎngzhǎng qīnzì shàngzhèn zhuā shēngchǎn. → The boss pitched in personally in the struggle to increase production.
阵亡
be killed in action
阵势
battle formation
阵地
position
阵容
battle formation
阵线
front line
阵脚
position
阵营
camp
临阵磨枪
leave things until the last moment ⇒ 平时要努力,靠临阵磨枪不行。 Píngshí yào nǔlì, kào lín zhèn mó qiāng bùxíng. → You should work hard all the time, and not leave everything until the last moment.
冲锋陷阵
( 作战英勇 ) charge the enemy lines
赤膊上阵
( 字 ) do ... bare-chested ⇒ 参赛者身穿短裤,赤膊上阵。 Cānsàizhě shēn chuān duǎnkù, chì bó shàng zhèn. → The competitors entered the field in shorts and with bare chests.