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abbr. 日本商务改善协会（Better Business Bureau）；血脑屏障
🗣️ 情景例句
Columbia? Why Columbia?
Columbia？为什么要去Columbia？
I learned history last month.
我上个月学历史。
I would like to give you an example, but fortunately I cannot do so.
我愿为你举个例子，但幸亏我举不出。