Coal measure
[建] 煤系
🧩 词语组成解析
coal
[kol]
n. 煤;煤块;煤堆;木炭;
vi. 上煤;加煤;
vt. 给…加煤;把…烧成炭;
🗣️ 情景例句
Are you sure about that?
你真的这么想吗？
Mrs.Jones,this is Mr. John Smith.
琼斯夫人，这是约翰、史密斯先生。
It was stolen twenty years ago when Dan was a boy of fifteen!
这是20年前丹还是一个15岁的孩子时被人偷走的！