We must make good use of the available space.
我們必須充分利用現有空間。
Our lifetime is short, so we should make good use of it.
我們的生命是短暫的,所以我們應該好好利用它。
At that time Han Xue decided to make good use of the chance to help him.
那時韓雪決定，要好好利用這個機會來幫助他。
I think the time be to make good use of.
我覺得該好好利用這段時光了。
Make good use of the'smile', can social stability.
利用好‘笑’，可以使社會穩定。