B calls
[医] B细胞, β细胞(胰岛)
🧩 词语组成解析
n. 调用；呼吁；电话（call的复数）
🗣️ 情景例句
I've been studying all day, and I'm sick and tired of it.
我学了一天，现在感到厌倦。
A wise man thinks all that he says,a fool says all that he thinks.
聪明人想了才说，愚笨的人想着就说。
When is the most convenient time for you?
你什么时候最方便？