Sillar
n. [地]未固结熔灰岩, 未固结火山凝灰岩
🗣️ 情景例句
No way. I must get everything ready before noon.
不行啊，我必须在中午前把一切都做好。
Don't swap horses when crossing a stream.
行至中流不换马；危难之时不宜作大变动。
I'm glad to hear that.
真是好消息，