B
abbr 缩写 = (of lead used in pencils) black,because soft(指铅笔心)黑色色重的(因质软之故)
a B/BB/2B pencil 一个B[两个B/2B]
的铅笔.Cf 参看 H, HB. symb 符号 (Brit) (of roads) secondary (指公路)B级:the B1224 to York 通往约克郡的B级1224号公路
a `B-road 一条B级公路. Cf 参看A. b, abbr 缩写 = born
Emily Jane Clifton b 1800. 埃米莉?简?克利夫顿, 生於1800年. Cf 参看 d 2.
🏥 医学释义
①硼 ②电池
🗣️ 情景例句
We have to advance the building of the new school.
我们必须促进新学校的建设。
How old?
多老?
After it had passed, they swam on as quickly as they could because they knew that the boat would soon return.