effort on，例如：
1、She spends too much effort on things that don't matter.她在一些無關緊要的事情上花費精力太多。
2、The effort spent on careful grading， mixing and compaction of concrete will be largely wasted if the concrete is badly cured.如果混凝土養護得很差，那麼在精心選定混凝土的級配、拌和和密實成型上所耗費的精力將是徒勞無益的。
3、We need to make a concerted effort to finish on time.我們需要通力合作才能按時完成。
1/effort釋義：
n. 努力成就
2/例句：
After everyone's joint efforts， the company has developed very well.
經過大家的共同努力，公司發展得很好。
3/effort固定搭配短語有：
in an effort to企圖（努力想）試圖要
great effort巨大努力
make every effort盡一切努力
spare no effort不遺餘力抽出寬容節省
joint effort共同努力
