effort 既可作可数名词也可作不可数名词。
1，可数名词。表示“费神的事，困难的事，成果”的意思。如，
1.It took an almost superhuman effort to contain his anger.
他以超常的克制力强压住怒火。
2.With an effort of will he resisted the temptation.
他凭自己的'意志顶住了这一诱惑。
3.I've no use for people who don't make an effort.
我厌恶那些不努力的人。
2，作不可数名词，表示“努力”的意思。如，
4.He made a concentrated effort to finish the work on time.
他全力以赴以按时完成这项工作。
5.So why go to all this effort?
那么这一切努力又是为了什么？
6.All this is effort, struggle. So what is important is not the object of struggle, but to understand struggle itself.
所有这些都是努力、奋斗。所以奋斗的对象是不重要的，重要的是要了解奋斗的本身。
