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[计] 顺序数据分组交换协议
🗣️ 情景例句
Don't be so miserable!
别这愁眉苦脸的。
As requested, we now hold this offer open for a further 5 days since 24th April.
按你方要求，我方报价有效期延长5日，从4月24日起。
The examiner looked at me sadly.
主考人伤心地看着我。