🗣️ 情景例句
I'm sure I did.
我确信我安排了什么事。
It will be very pleasant to go fishing with you.
跟你去钓鱼的话，将会很愉快。
This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second.
这种通讯联系要靠21厘米波段，即每秒1420兆周的精确无线电频率。