n.努力;吃力;有组织的行动;费力的事;
例句:
They've put in time and effort to keep the strike going.
他们花费了很多时间和精力以使罢工持续下去。
They only made a perfunctory effort.
他们只是敷衍了事。
You should put more effort into your work.
你应该更加努力地工作。