making an all-out effort (idiom); to try one's heart out
to do one's utmost
Definitions (粵典–words.hk)
副詞
竭盡心思、力量 to do one's utmost
阿清盡心盡力幫公司做嘢,於是公司升咗佢職。
阿清尽心尽力帮公司做嘢,于是公司升咗佢职。
aa3 cing1 zeon6 sam1 zeon6 lik6 bong1 gung1 si1 zou6 je5, jyu1 si6 gung1 si1 sing1 zo2 keoi5 zik1. Ah-ching has been doing her utmost for her company so she finally gets promotion.
Definitions (Wiktionary)
phrase, idiomatic
to spare no effort; to try one's best; to do one's utmost (syn.) 盡心竭力, 尽心竭力