be against doing sth play against against 他们有什么区别呢,用法是什么 呢

against doing sth,与be against doing sth的区别 be against doing sth play against against 他们有什么区别呢,用法是什么 呢 warn sb.against (doing)sth. be doing sth.when be always doing sth . be doing sth. the reason against to do sth 还是doing sth 有be against sb doing sth 么?谢谢, 反对某人做某事 一般怎么去表达.最好给个例句 有be against sb doing sth 反对某人做某事 一般怎么去表达.最好给个例句 be worried doing sth 还是be worried about doing sth be worthy of sth / doing sth. be worth sth./doing sth.造句, there be sb/sth doing be afraid of doing sth be busy doing sth 例句 be interested in doing sth be busy in doing sth be long in doing sth