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1.mobile device 移动设备
例句：Or how about a mobile device that connects with other devices to exchange pictures and videos.
或者想象一下，可以让移动设备连接其他设备来交换图片和视频。
2.pay for 为…而付钱
例句：“Have you paid for these books?”“Yes, I have paid thirty dollars for these book.”
“这些书的钱你付了吗?”“付了，我付了30美元。”
3.skip over 略过
例句：Actually I will skip over these.
实际上我跳过了这些。
4.reach for 伸手拿
例句：The baby reached for the apples.
婴儿伸手去拿苹果。
