自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
N-VAR 努力;气力；精力 If you make an effort to do something, you try very hard to do it.
He made no effort to hide his disappointment...
Finding a cure requires considerable time and effort.
N-UNCOUNT 吃力;费力 If you say that someone did something with effort or with an effort, you mean it was difficult for them to do.
She took a deep breath and sat up slowly and with great effort...
With an effort she contained her irritation.
N-COUNT （为达到某一目的的）有组织的行动，一系列活动 An effort is a particular series of activities that is organized by a group of people in order to achieve something.
...a famine relief effort in Angola.
N-SING 费力的事;困难的事;劳神的事 If you say that something is an effort, you mean that an unusual amount of physical or mental energy is needed to do it.
Even carrying the camcorder while hiking in the forest was an effort.
PHRASE 尽力；尝试；勉为其难 If you make the effort to do something, you do it, even though you need extra energy to do it or you do not really want to.
I don't get lonely now because I make the effort to see people.
PHRASE 勇气;决心 If you do something difficult or painful by an effort of will, you manage to make yourself do it.
It was only by a supreme effort of will and courage that he was able to pull himself together.
PHRASE 值得努力去做 If you say that something is worth the effort, you mean that it will justify the energy that you have spent or will spend on it.
Fortunately, the chore of leaf sweeping is well worth the effort.