我的护目镜一直有水雾,所以我看不见.My swimming goggles keep steaming up so I can't see.滑雪者都戴上护目镜使眼睛不受阳光伤害.Skiers wear goggles to protect their eyes from the sun.为了免受烟雾危害，你必须戴上护目镜和面罩。You must wear goggles and a mask that will protect...
Iran remains an enigma for the outside world.对于外界而言，伊朗仍是个谜。Iran reopened its embassy in London.伊朗在伦敦重开使馆。Jim has been sent to Iran to report on the situation there.吉姆已被派往伊朗报道那里的局势....
Vitamin B assists in red-blood-cell regeneration.维生素B可以促进红细胞再生。This chemical assists in construction of muscle, bone and other tissues.这种化学物质有助于建造肌肉 、 骨骼和其它组织.The congregation assists at divine service.会众参加圣礼....
Recent studies suggested that erythromycin may be effective in prophylaxis against pertussis in exposed, susceptible persons.最近的研究提示,红霉素对暴露于百日咳的易感者,在预防上有效.Objective To study the human pharmacokinetics and bioequivalence ...