详细解释:n. 努力, 成就
相关词组:
in an effort to do
make an effort to do
spare no effort to do
make every effort
spare no effort
in a common effort
without effort
make a united effort
词型变化：
形容词:effortful副词:ef-fortfully英语解释：
名词 effort:
earnest and conscientious activity intended to do or accomplish something同义词：attempt, endeavor, endeavour, try