我们通过磁铁的作用知道磁性是怎么一回事.We know about magnetism by the way magnets act.他用磁铁捡起了所有的大头针.He picked all the pins up with a magnet.极性是磁铁的固有性质.Polarity is inherent in a magnet....
I can't breathe weII through my nose Because of empyema.因为我的积脓症我不能很顺畅的用鼻子.Lung abscess, empyema and subsequent bronchiectasis are relatively common complications.较常见的合并症有肺脓肿 、 脓胸及随后发生的支气管扩张症.To evaluate CT and MRI f...
Small things stirred in the grass around the tent.一些小东西在帐篷四周的草丛里窸窸窣窣地动着。Mom wants to know if you guys still have that two-person tent.妈妈想知道你们是否还有那顶双人帐篷。He drew back the tent flap and strode out into the blizzard.他拉开帐篷的门帘...