Hard ash coal
[化] 贫烟煤; 硬灰煤; 瘦煤
🧩 词语组成解析
hard
[hɑrd]
adj. 困难的;硬的;有力的;努力的;
adv. 努力地;猛力地;严重地;沉重地;
n. 英〉硬海滩，登陆处;
ash
[æʃ]
n. 灰，灰烬;灰色，苍白;骨灰;废墟;
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
Second,
第二，
In university, students are trained to become doctors and nurses.
大学的学生被训练成为医生和护士。
Didn't you see the speed limit?
难道你没看见限速牌吗？