We must be quick or we will be late for class.
我们必须快点了，否则上课要迟到了。
Children who play video games well must be quick with their hands and sharp-sighted.
能熟练玩电子游戏的孩子必须眼疾手快。
I must be quick, otherwise I will be late.
我必须要快一点否则我就迟到了。
We must be quick. There is little time left.
我们必须快些，剩的时间不多了。
So the service we provide must be quick, smooth and impressive.
因此，我们服务的每一环都必须衔接得很好，快速且优质。
So the service we provide must be quick, smooth and impressive.
因此，我们服务的每一环都必须衔接得很好，快速且优质。
应用推荐