2022年7月24日
cold, flu
摘要： The common cold, also known simply as a cold, is a viral infectious disease of the upper respiratory tract that primarily affects the respiratory muco 阅读全文
posted @ 2022-07-24 20:02 华容道专家 阅读(66) 评论(0) 推荐(0)
coin
摘要： A coin is a small, flat, (usually, depending on the country or value) round piece of metal or plastic used primarily as a medium of exchange or legal 阅读全文
posted @ 2022-07-24 16:23 华容道专家 阅读(190) 评论(0) 推荐(0)
coil
摘要： A coil, in chemistry, is a tube, frequently in spiral form, used commonly to cool steam originating from a distillation and thus to condense it in liq 阅读全文
posted @ 2022-07-24 10:34 华容道专家 阅读(217) 评论(0) 推荐(0)