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abbr. 日本商务改善协会（Better Business Bureau）；血脑屏障
🗣️ 情景例句
Richard and I will put them into the envelopes.
我和Richard把它们放进信封。
The crowd gasped with astonishment.
大家惊讶的屏住呼吸。
Last week No.14 Middle School held a sports meeting on the playground.
上星期第十四中学在操场举行了一次运动会。