上阵的英文：
enter the field
take the field

参考例句：

An gruff general asked, "Who'd want to march into battle with a regiment of Japs behind him?"
一个爱找碴儿的将军问道：“敢问哪位愿意背后跟着一串日本佬去上阵？”

A baptism of firesoldier's first experience of warfare
战火的洗礼(指士兵初次上阵).

Ne Zha changed into a fighter with three heads and six arms each holding a different weapon.
哪吒上阵后，变作三头六臂，手持六种兵器，朝大圣打来。

enter是什么意思：
v. 进入；参加；登记；开始
n. 输入；回车

There entered a Sewer.
进来了一个裁缝师。

Enter product information before entering purchase order.
输入采购订单之前请输入产品信息。

she entered with a great flourish.
她进来时做出十分夸张动作。

field是什么意思：
n. 原野，田地；运动场；领域，专业；实地，野外
adj. 实地的，野外的，野战的；野生的；田间的
v. 接球；巧妙回答

A rectangular field is to be subdivided into eight equal fields to sell.
这块矩形的土地被划分成八等分再出售。

Scatter seeds on the fields/scatter the fields with seeds
在田里播种[把种子撒在田地里]

They leveled a field yesterday.
他们昨天平整场地了。

take是什么意思：
v. 拿，取；带；获得；采取；承担；吃；耗费；乘，搭；以为；理解；走；抓住

a catch; a take; a taking
捕获量

take a nap; take a snooze
小睡一下;睡午觉

take service with
在￥帮佣