勒罗伊偷偷穿过门厅走到客厅。Leroy stole up the hall to the parlor.勒罗伊没受过任何正规的舞蹈训练。Leroy didn't have any formal dance training.瞧,艾尔莫生病了, 勒罗伊和我不可能就因为这而不干活吧.Now just because Elmer's sick, that don't mean that Leroy and me ...
电磁波是由一种称为速调管的微波电子管产生的.The electronmagnetic wave is produced by microwave tubes called klystrons.这些工厂生产电子管 、 晶体管 、 收音机和电视机.These factories produce tubes, transistors, radio sets and TV sets.这些放大器是用微型电子管制成的.These amplifier...