Gleys
(gley 的复数) n.[地]潜育土(层),灰黏土(层)
🗣️ 情景例句
He goes to high school.
他在上高中。
But it's still raining today!
可今天还在下雨。
below 20 per cent, its bactericidal action is negligible.
浓度低于20％时，杀菌能力基本上就不存在了。