百折不撓
Fight for it tooth and nail.
Get at it hammer and tongs.
Never say die.
Stick it out.
eg:If Tom wants to win the scholarship, he has to fight for it tooth and nail in studying all text books.
中英俚語俗語來源:“漢·蔡邕有百折不撓,臨大節(jié)而不可奪之風。”
同義詞:不屈不撓 Firm and unyielding.
反義詞:俯首就范 Give one's head for the washing.