英语词组to be an effort to do sth是什么意思，短语翻译、用法及例句-英语词组固定搭配大全

词组	to be an effort to do sth
释义	to be an effort to do sth (difficult)做某事费劲 It was an effort to concentrate.要想全神贯注很困难。 See effort
随便看	a time zone a time-consuming task a timely reminder a timescale of 5 years a timetable for sth a tin of sth a tin of sth a tin opener a tingle of excitement a tiny bit a toasted sandwich a toaster a token of sb's esteem a token of your appreciation a top model a top speed of 241 km per hour a top surgeon a topic of conversation a topic of general interest a topical issue a torn ligament a torrent of abuse a tortuous mind a tortuous mountain route a toss of the dice

英语词组固定搭配大全包含52743条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。