Supergrass
n. <英>向警方提供大量罪犯活动情报的人（尤指本人也是罪犯的人）
🗣️ 情景例句
I'm not upset at all.
一点也不。
Feed by measure and defy physician.
饮食有节制，医生无用处。
When they were very young, Mr. Green sometimes dressed up in a red coat. But he doesn't do that now.
在他们很小时，有时候格林先生穿上一件红色的外套。但他现在不那么做了。