ADJECTIVE | PREPOSITIONADJECTIVE➤considerable, extreme, great, strenuous, vigorous相當大的/極大的/巨大的/艱苦的/積極的努力▸➤mental, physical竭盡腦力;竭盡體力◇Try to avoid physical exertion.盡量避免過度消耗體力。PREPOSITION➤from exertion由於用力◇She was hot and breathless from the exertion of cycling uphill.由於用力騎車爬坡,她覺得很熱,喘不過氣來。➤with exertion因為勞累◇flushed and sweating with exertion after digging掘土後累得臉紅、流汗