Ancylostomiasis
n. 钩虫病
🗣️ 情景例句
It is.
是的。
Missing school to watch the football match is out of the question.
为看足球赛而旷课，那可不行。
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。