sb be bound to do sth是什么意思

sb be bound to do sth是什么意思 be hard for sb to do sth是什么意思? be coming to do sth take sb to do sth 这两个词组各是什么意思 英语翻译allow sb.to do sth.ask sb.to do sth.be busy doing sth.be sb be interesting to do sth be adj to sb/do sth There be sb to do sth. invite sb to do sth be on sb be made to do sth sb be adj to do sth. be critical for sb to do sth There will be sb to do sth