Retainment
保持\\n保留\\n记住\\n聘请（retain的名词形式）
🗣️ 情景例句
Yes, we'll be arriving by car about ten o'clock Friday night.
是的， 我们将于星期五晚上十点钟左右开车抵达。
I'm twenty-one years old.
我21岁。
We continually wage war on them, for they contaminate our food, carry diseases, or devour our crops.
人类不断同昆虫斗争，因为昆虫弄脏我们的食物，传播疾病，吞噬庄稼。