短語詞組短語be momentarily unable to speak 一時說不出話來be unable to do 不能夠;不能;不能做;沒能力做某事Be unable to support 喫不住be unable to stand 禁不起;不能承受Be Unable To Undo 擇不開be unable to concentrate 不能專注be unable to buy 買不到be unable to learn 越學越be unable to manage 玩不轉 返回 be unable to