题目内容：

call at call in call off call out的用法

优质解答

call at到…进行短暂访问 He called at Mr.James this afternoon.他今天下午到詹姆斯先生家去拜访了他.call out 大声喊叫; 召集; 命令(工人)罢工; 使跃出; 向...挑战; 要求和...决斗 For further details,please cal...