...時候，意思是給人的感覺， 通常不用進行式)A baby’s hand feels smooth. (NOT --- is feeling smooth.) That feels nice...
... is also an interlanguage, namely, if you are able to speak English well, your development on the work will be much smooth. Therefore, we can't put overemphasis on the importance of ...
...old, going to XXX High School now. The way to speaking smooth English lies not in being 'fast' or 'fluent'...