Bbbs
abbr. 血脑屏障；日本商务改善协会（Better Business Bureau）
🗣️ 情景例句
Any time.
随时效劳。
Put the receiver closer to your mouth.I can't hear you.
把听筒放近你的嘴，我不能听见你的话。
CUSTOMS OFFICER: That's fine.
好了。