Sillar
n. [地]未固结熔灰岩, 未固结火山凝灰岩
🗣️ 情景例句
A little further back, Tom.
再往后一点 Tom。
A faithful friend is hard to find.
益友难得。
The crowd began to shout, but the drunk was unaware of the danger.
人们开始大叫起来，但醉汉却没有意识到危险。