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
Pete isn't home.
Pete不在家。
Choose an author as you choose a friend.
选书如择友。
The book you ask for is sold out.
你要的那本书已经售完了。