Plunging
a. 跳进的；突进往下的
🗣️ 情景例句
it takes a little bit of money to run a campaign.
竞选活动需要花一些钱。
Thank you for giving me an opportunity to speak about myself at this special occasion.
谢谢大家给我机会在这样一个特别的场合介绍我自己。
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。