是black out还是blackout,它的过去式是什么

是black out还是blackout,它的过去式是什么 停电的英文是 blackout 还是 black out blackout black out. only 7 out of 10 black students这里的out of 到底是高于70%还是等于70%? black out是什么意思啊及其例句是 blackout shades 是a small black bear 还是 a black small bear? 是long black hair还是black long hair 是long black trousers还是black long trousers 是long black hair还是black long hair Black out 是什么意思? 白色污染是white pollution还是black pollution? black 比较级biack是单还是双? 红糖是black sugar还是brown sugar 是look out 还是 look out of 是a T-shirt on black还是a T-shirt for black?是on还是for? Black Hole and out of