坚持到底：
stick it out
stay the course
hold on to the last
carry through firmly (to the end)
hold on straight to the end
祝你新年快乐，学习更上一层楼！请记得采纳，谢谢！(*^__^*)
hold on to the last/hold on straight to the end (坚持到底)
insist to the end
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