B-b
abbr. 滚珠轴承（ball bearing）；铅笔芯（double black）
🗣️ 情景例句
Please remain calm, sir. Just give me your name and your location.
请保持镇静，先生。告诉我你的名字和所在地点。
I'll take care of it.
我来办这件事。
for he brought science to the game.
是他把科学引进了这项运动。