If we are going to dance, some of you can give me a hand to clear the decks. Let's firstly shove the things out of the centre of the room.
如果我们要跳舞的话, 你们可以帮我准备一下。让我们先把房子中间的东西推到一边去。
The illness can develop in two ways: firstly, in cases of high blood pressure and secondly...
这种病有两种情况: 第一, 由高血压引起; 第二....
