go to great lengths - to make a great deal of effort to do something, half-hearted - to do something without enthusiasm or real interest , struggle - to find something very difficult, trial and error - (to get the right result) by experimenting, find it easy - (to do something) without having to make much effort, get a lot out of it - to find all your effort very rewarding, do sth properly - to do something the right way,

English in Mind 4 Making an effort

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自動保存: を復元しますか?