effort

1.[u][c]气力；努力；费力的事the physical or mental energy that you need to do sth; sth that takes a lot of energy

2.[c]艰难的尝试；试图；尽力an attempt to do sth especially when it is difficult to do

3.[c]有组织的活动a particular activity that a group of people organize in order to achieve sth

4.[c]努力的结果；成就the result of an attempt to do sth

1.努力,尝试,尽力

2.工作;工作研究计划

3.成就,努力的成果;杰作

4.【机】作用力

5.〈英〉(募捐等的)运动

1.an attempt to do something that is difficult or that involves hard work

2.physical or mental energy needed to do something

3.the activities of people who are working together to achieve a particular goal

4.something that someone produces or creates, often something of poor quality