Mullins knocked me off-balance with his abrupt change of subject.马林斯突然改变话题，这让我措手不及。The pitch of the ship threw the passengers off balance.轮船上下颠簸,使乘客失去了平衡.A gust of wind knocked him off balance and he fell face down in th...
God, what a swine Bertrand is.我的老天, 伯特兰德简直讨厌死了.The transmission of normal circular - arc gear is a typical Bertrand conjugation.考虑到平行轴的法向圆弧齿轮传动已臻成熟,论文重点研究了相交轴与交错轴条件下法向圆弧齿轮传动的基本方案.Mr Zhang Songnian once translated an essa...