1.to blow out:(轮胎等)漏气;吹熄,使熄灭(out是副词,宾语可以置于blow与out之间)。如:On our trip to Colorado, one of the car tires blew out when it hit a large hole in the road.Little Joey wasn’t able to blow all the candles out, so his big sister helped him. 2.to become of:降临,遭遇,发生(对于丢失的物或人)。become of通常与what搭配使用。如:What has become of my pencil? I had it ten minutes ago, but now I can’t find it.