effort 可数，复数形式是efforts
effort
美 /ˈefərt/
英 /ˈefət/
n.
努力；成就
双语例句：
After everyone's joint efforts, the company has developed very well.
经过大家的共同努力，公司发展得很好。
It took me lots of efforts to finger out the final result of this math exam.
我费了好大劲才算出这次数学考试的最终结果。
