FAQs About the word elbow grease

肘部润滑油

use of physical or mental energy; hard work

努力,疼痛,工作,能量,努力,支出,劳动力,权力,汗,麻烦

轻松,设施,流畅,平滑,休眠,懒惰,不作为,不活动,怠惰,惯性

elbow bone => 肘骨, elbow => 肘部, elbe river => 易北河, elbe => 易北河, elayl => 小女孩儿,