The laser energy removes the brown pigment, or melanin, from the top layer of the iris, and the blue eye colour emerges over the following two to three weeks.
激光能去除眼球虹膜最外层的棕色素或黑色素，而蓝眼珠会在两到三周之后显现。
B Instead of Chinese summer vacation and winter vacation, Americans have two or three weeks off from work specifically for vacations.
取而代之中国的寒暑假，美国人的工作假期也有两、三个星期。
We have to give him time now to recover from that intense preparation but, in two or three weeks, he will have done that and might play as well.
我们现在必须给他时间从剧烈的身体准备中恢复过来，但在两到三周内，他将会恢复体力，并且又将上阵比赛。
We have to give him time now to recover from that intense preparation but, in two or three weeks, he will have done that and might play as well.
我们现在必须给他时间从剧烈的身体准备中恢复过来，但在两到三周内，他将会恢复体力，并且又将上阵比赛。
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