其实它们的理解力经常远远超过你们想要给它们的指令，对于这你完全可以简单的做个测试。
They usually understand far more than you would give them credit for, and you can easily put it to the test.
youdao
调制解调器没有接受发送给它的指令。
The modem did not accept the command sent to it.
应用推荐
模块上移
模块下移
不移动