这就是为什么短信长度如此受限：它不能超过用于基站和手机间内部通信的消息的长度。

That's why a message is so limited in length: it must not exceed the length of the message used for internal communication between tower and handset to set up a call.

youdao

这就是说，为了保持我们的利润，我们的生产成本每件一定不能超过14。

That means, that to keep our margins, our production costs must be no more than 14 per unit.

youdao

这就是说，为了保持我们的利润，我们的生产成本每件一定不能超过14。

That means, that to keep our margins, our production costs must be no more than 14 per unit.

youdao