.英语词组(一)名词的固定搭配by accident偶然on account of因为,由于in addition另外in addition to除之外(包括)in the air在流行中,在传播中on (the/an) average平均,一般来说on the basis of根据,在的基础上at (the) best充其量,至多for the better好转,改善on board在船(车、飞机)上out of breath喘不过气来on business因公,因事in any case无论如何,总之in case of假使,万一in case假如,以防(万一),免得in line成一直线,排成一行in line with与一致,按照at a loss困惑,不知所措by all means无论如何,必定by means of借助于,用by no means决不in