properly

副词 properly:

1. in the right manner
   同义词：decently, decent, in good order, right, the right way
2. with reason or justice
   同义词：by rights

1. 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。
2. The heater in my car doesn't work properly.
   我汽车里的暖气设备出了点毛病。
3. 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。
4. I'm learning German, but I still can't speak it properly.
   我正在学习德语，但还说不好。