be an extra的意思|示意

There will be an extra charge for additional passengers.

额外的乘客都需另外付费。

An antenna and extra power allow the signal to be transmitted over long distances.

信号通过天线与额外功率能够传输很长的距离。

Or, there may be an extra brace in your source code before the location of the C2601 error.

或者，可能是C2601错误位置之前的原始程序码中有太多额外的括号。

This extra “conservation buffer” can be flattened in an emergency.

在紧急情况下，这种额外的“保护性缓冲资本”将被摧毁。

OK, but there will be an extra charge for quick service.

好的，不过我们要收快件费。

Reading is the biggest reason to want to get rid of mediocrity, a day earlier is a wonderful life. Late one day be an extra day of mediocre.

阅读的最大理由是想摆脱平庸，早一天就多一份人生的精彩；迟一天就多一天平庸的困扰。