单词 不利条件 例句 DEFINITIVE EXAMPLES 权威例句〔DISADVANTAGE〕Like many other black families, his family had to struggle to overcome social and economic disadvantage. 与许多其他黑人家庭相似,他们一家不得不苦苦挣扎来克服社会和经济上的不利条件。朗文写作活...