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....
Vacuum-packed ham slices should be unwrapped 30 minutes before serving.真空包装的火腿片应在食用前30分钟把包装除去。He will actually be serving three concurrent five-year sentences.实际上，他将服3个5年徒刑，合并执行。Empty the noodles and liquid into a servin...