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[计] 信息包交换服务, 分组交换业务
🗣️ 情景例句
The economy is booming in this country.
这个国家的经济形势一片大好。
He didn't say anything as to where he would go.
关于他的去处他什么也没说。
First it made a circle to the right, then to the left.
令他吃惊的是，蜜蜂开始在蜂窝的表面表演一种舞蹈。