1) I know little German.
我不懂什么德语。
2) I don't know German.
我不懂德语。
3) Well,this sort of talk is above me
我不懂你们在讲什么
4) What does lacking in understanding mean?
什么是不懂？
5) I don't understand French.
我不懂法语。
6) I know a little German
我懂一点儿德语。
参考词条