A cold is an infection of the upper respiratory tract.感冒是上呼吸道的感染。They've picked up a really nasty infection from something they've eaten.他们因吃错东西而得了很严重的感染症。Our doctor diagnosed a throat infection and prescribed ...
The soldier looked incredulously at the feisty child.士兵难以置信地看着这个异常顽强的孩子。'He's gone!'Viv echoed incredulously.“ 他走了! ”维夫不愿相信地重复.Her host looked at her incredulously.她的男主人难以置信地看着她....
Insects and worms are all invertebrates.昆虫和蠕虫都是无脊椎动物。In the earthworm and many other invertebrates, these excretory structures are called nephridia.在蚯蚓和许多其它无脊椎动物中, 这些排泄结构称为肾管.But regulators with spine are still better th...
A chip is a piece of silicon about the size of a postage stamp.芯片就是一枚邮票大小的硅片。A fifty cent postage stamp was put on the heavy letter.那封超重的信上贴了一张五十美分的邮票.Allan licked the postage stamp and stuck it on the envelope.阿伦舔了舔邮票,把...