意思不同。
return的意思是，回来。例句:I made a solemn promise that I would return.
我郑重承诺我会回来的。
quit的意思是，退出。例句:I haven't even begun to think about quitting, or having a last hurrah, or allowing my career to wind down.
不论是突然退出、来个告别演出，还是逐渐淡出，我甚至完全都没有考虑过。
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