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
By arranging with the public schools
首先， 从公立学校开始
Is it illegal to tap a telephone for the purpose of secretly recording a conversation?
为了秘密地录下谈话，在电话内装置窃听器是违法的行为吗？
Nothing much. Why?
没啥事。怎么啦？