At that second knock, a window on the third floor opened and the same Snail looked out.
第二次敲门时，三楼的一扇窗户打开了，还是那只蜗牛往外看。
Keep logs to study your online profile and decide what you can knock out, download a program like Freedom that locks you out of your browser, or take a "digital Sabbath".
保持记录，研究你的在线资料，并决定你可以删除什么，下载一个像Freedom这样的程序，使你远离浏览器，或采取 "数字安息日"。
Senator Obama had hoped to deliver Senator Clinton a knock-out blow by winning Ohio and Texas, but he came away with only a win in Vermont.
参议员奥巴马希望赢得俄亥俄和德克·萨斯，将克林顿参议员击败淘汰出局，但是结果他仅仅赢了佛蒙特一个州。
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