Attention should be paid to the gistory of unclean coitus or uterine cavity operation.因此,在诊断感染性疾病时应注意近期不洁同房史或宫腔手术史.They may attempt coitus with calves, ponies, sheep, pigs, dogs, and even ducks or chickens.他们可能尝试与小母牛 、 小...
Sift the flour and baking powder into a medium-sized mixing bowl.将面粉和发酵粉筛入中等大小的搅拌碗中。Sift the flour into a bowl.把面粉筛到碗里。Sift out the wheat from the chaff.把小麦的壳筛出来....
The king carried himself with his customary elegance.国王保持着一贯的温文尔雅。It is customary for the teacher to provide grammar notes to help the student generalise what he has learned.教师经常给学生提供语法注释,帮助他归纳所学到的东西.The press gallery ha...