英语语法分析

Revise material and tools & equipment data base semiannually according to MS;

按MS 每半年修订航材及工具设备数据库；

Banks also pay interest at different times. But the majority of them pay semiannually.

各银行，付利息的时间也不一样，但是大部分银行都是半年付一次。

Banks also pay interest at different times. But the majority of them pay semiannually — that is, every six months.

各银行支付利息的时间也不一样，大多数都是半年，即每隔六个月付一次利息。