attempt本身作名词，是可数名词。
attempt：n.企图；试图；尝试；v.努力；尝试；试图
相关介绍
Attempts are being made to solve the problem of waste disposal.
正在想办法解决废物处理的问题。
Two factories were closed in an attempt to cut costs.
为削减费用，关闭了两家工厂。
He made a genuine attempt to improve conditions.
他真心实意地努力改善环境。
