在社交场合讨论生意被认为是不礼貌的。It was thought bad form to discuss business on social occasions.提出过多的问题是不礼貌的。It is impolite to ask too many questions.职员常常态度很不礼貌，有时候极其蛮横。Staff are often discourteous and sometimes downright rude....
声光调变 式 滤光片和液晶调变式滤光片在萤光显微镜学方面的应用做了比较.Side - by - side comparison of LCTF and AOTF in fluorescence microscopy was made.契约的要素不光有前 置 、后 置 条件和类不变式.Pre - and post - conditions and class invariants are not the only elements of ...