看得出科恩并不明白米勒德想说什么。It was clear Cohen didn't understand what Millard was driving at.有大量疾病是由不明环境因素造成的。A surprising number of ailments are caused by unsuspected environmental factors.该作家的风格表明其道德观有点暧昧不明。The author's...
It foundered during the turmoils accompanying the Great Migrations.它在随着民族大迁徙而出现的混乱中崩溃.They are sexually mature at this age and begin to participate in the breeding migrations.在这个时候它们性征发育成熟并开始参与繁殖大迁徙.This old so - called ...