properly什么意思？

properly:
ad. 适当地,相当地,当然地

例句与用法:
I'm learning German, but I still can't speak it properly.
我正在学习德语，但还说不好。
That is not, properly speaking, a dictionary but a grammar book.
严格地说，那不是一本字典，而是一本语法书。
The heater in my car doesn't work properly.
我汽车里的暖气设备出了点毛病。
The machine won't function properly if you don't oil it well.
如果你不给机器好好加油的话，它就不会正常运转。

适当地，相当地，当然地

恰当地; 有礼貌地; 正确地; 体面地