Sapanthracite
腐泥無煙煤
??? 情景例句
Youth boredom is the main culprit behind youth crime.
年輕人的無聊是青少年犯罪最大原因。
To climb stairs
爬樓梯
As there are so many people about, the dogs have to be kept in a special enclosure.
由于來人太多，狗被關在專門的圍欄里。