B-to-b
企业对企业（电子商务的一种，Business to Business）
🧩 词语组成解析
to
[tu,tə]
prep. 向，朝着;到;关于;属于;
adv. 朝一个方向的;到某种状态;关闭;
🗣️ 情景例句
You've been very thoughtful.
你一直都很周到。
Let things take their course.
听其自然。
but custom, we have a way of thinking, is behaviour at its most commonplace.
至于风俗呢，只是些司空见惯的行为而已。