Birch tar(oil)
[化] 桦木焦油
🧩 词语组成解析
birch
[bə:tʃ]
n. 桦树，桦木;（鞭打用的）桦条;
vt. （用桦条）抽打，鞭挞;
🗣️ 情景例句
He's just fooling around.
他用情不专。
How often did I tell you to speak clearly?
我告诉你多少次要讲清楚?
Can you tell me why?
能告诉我什么原因吗？