“但白费气力”例句

单词 但白费气力 例句 DEFINITIVE EXAMPLES 权威例句〔head〕I've tried to talk some sense into them, but it's like banging my head against a brick wall.我拼命劝他们，但白费气力。朗文当代 　 英语例句辞典收录了559068条英语例句在线翻译词条，基本涵盖了全部常用单...