A: 冰冻的衣服晾干
B: 春天冰雪消融
C: 冬天窗玻璃上有水滴
D: 用干手器将手烘干
The most important thing ______we should think about is ______ we should do next.
澳门在建立特别行政区之前曾被哪个国家侵占达400多年?