drive sb. away; 把人撵走
oust from a leading position 撵下台
He ran hard and tried to catch up to his friends. 他拼命地跑,想撵上他的朋友们。
I couldn't catch up with him. 我撵不上他。
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)