Whooping cough is very prevalent just now.百日咳正在广泛流行.Measles, mumps and whooping cough are spreading again because children are not being vaccinated.因为孩子们没接种疫苗，麻疹、腮腺炎和百日咳又蔓延开来。Have you had your child vaccinated against wh...
Measles, mumps and whooping cough are spreading again because children are not being vaccinated.因为孩子们没接种疫苗，麻疹、腮腺炎和百日咳又蔓延开来。Whooping cough is a serious respiratory disease caused by Bordetella pertussis.百日咳是一种由百日咳杆菌引起的严重的...
Venus, Earth, and other planets also perturb Mercury's motion.金星, 地球和其他行星也使水星的运动受到摄动.Mercury, polychlorinated biphenyls ( PCBs ) and chlordane are among the major contaminants found in Illinois fish.水银, 多氯联苯和氯丹是在伊利诺...
你如果不对他硬点,他是决不会把钱付清的.He'll never pay up unless you get tough with him.修补后铸件无裂纹 、 无硬点、无明显分界线.After repairing, no cracks, no hard points and no clear dividing line exist.硬点: 由接触复制或由激光直接扫描而得的半色调点子.Hard dots: Half - tone...
船只必须在指定的港口把捕到的鱼卸下。The vessels will have to land their catch at designated ports.他们把捕到的鳕鱼和鲈鱼卸下来。They unloaded their catch of cod and bass.捕到很多鲭鱼.There is a large take of mackerel....
It was 90 degrees and the air conditioning barely cooled the room.当时气温达到了90度，空调也不能让房间凉快多少。The air-conditioning screeched all the time.空调一直在发出刺耳的声音。Some people think that ventilation is the same thing as air conditioning....