🧩 词语组成解析
grey
[ɡre]
adj. 灰色的;灰白的;
vt. 使变成灰色;使变老;
vi. 变成灰色;老化;
n. 灰色;
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
What about Michelle's school?
那Michelle的学校怎么办？
When were you born?
你什么时候出生的？
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如，很多公司向图书馆借阅科技书籍时感到很困难，