我去年因病耽误了很多功课。I missed a lot of school through illness last year.因病请假不扣工资.No deduction in pay is made for absence due to illness.因病而缺课的学生不下十名.No fewer than 10 students were absent through illness....
汞的化学元素符号是什么？What's the chemical symbol for mercury?有些窃贼用汞水腐蚀他们的镣铐.Some thieves have eaten off their irons with mercury water.添加的甲基汞的回收率据报到达90%左右.The recovery of added methylmercury was reported to be approximately 9...