He is a mama's boy; he can't do this by himself.

◆mama's boy
字面词义：妈妈的儿子。
真正含义：娇生惯养的男孩；不能独立自主的窝囊废；或指过分依恋母亲的男人。

◆句子翻译
他是一个娇生惯养的人，根本就做不了这件事。

1、There are so many mama's boys in modern society.
现在好像越来越多的男生很依赖母亲。
2、The other boys called Tommy a mama's boy because he wouldn't come out to play unless his mother stayed near him.
别的男孩都叫汤米娘娘腔的男孩因为没有母亲在旁他就不肯出来玩。
3、Many who knew him called him a mama's boy because he lived with his mother until he was 50 years old.
许多认识他的人都说他太依恋自己的母亲了，因为直到他50岁了，还和母亲生活在一起。
4、A mamma's boy is not my type.
乖乖牌不是我喜欢的类型。

5、Don't tell me you are a mamma's boy.
不要告诉我你是乖小孩喔。
6、He is a mama's boy and he can't live without his mother.
他太娇生惯养了，离开母亲就无法自理生活了。
7、Oh my god, you are chasing a man who is a mama's boy? Dump him, hurry up!
天哪，你在追一个乖乖牌？趁早甩了他吧！
8、I'm not a mama's boy, I can do it by myself.
我并不娇生惯养，我可以自己做好这个。