1. 简单机械：simple internet provider 简易Internet提供者 | simple machine 简单机械 | simple mail transport protocol 简单邮件传送协议
1. A simple machine is used along with animal bones and other materials brought from the sea.
noun
1. 911查询·英语单词
1. a device for overcoming resistance at one point by applying force at some other point
Synonym: machine