for long什么意思
for long 英[fT: lTK] 美[fTr lTK]
adv. 长久;
[例句]But one problem is that few people can stick to a diet for long.
但有一个问题是很少有人能长期坚持节食。
honglong和hongsoon的区别
how long提问的是空间的距离，回答的是距离。
how soom指的是时间的长短，回答的是时间，例如
How long is the distance? 距离有多远？
答: One kilometer.
How soon will he come back? 他还有多久回来？
答: About 2 hours later.