The Double Second Festival (the Dragon Head-rising Festival or Longtaitou Festival) is one of them.

二月二（又称龙抬头）就是其中之一。

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If I win the game, I'd like one grain of rice for the first square of the chessboard, two for the second, four for the third, and then double the amount for each of the rest of the squares.

如果我赢了，我想在棋盘的第一个方格里放一粒米，在第二个方格里放两粒米，在第三个方格里放四粒米，然后在剩下的方格里依次放两倍的米。

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Second, double-clicking the closed model will open it.

接下来，双击这个封闭模型将它打开。

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At this point, we have no other choice but to double up before going to the next energy level, 2px so we'll put a second one in the 2 p x.

在这点上我们没有其他选择,而只有双倍填充,在到下一个能级之前，所以我们放入第二个电子至。

麻省理工公开课 - 化学原理课程节选

I'll put double crosses for "in the second round" 2 and 9.

我在第二次推理上画两个叉,立场2和9

耶鲁公开课 - 博弈论课程节选

Suzuki doubled and Nix singled to set up Overbay, who delivered his second double of the night.

WSJ: Royals pounded by Overbay, Yankees in 11-6 loss

Then Saltalamacchia doubled in two runs and Middlebrooks drove in another with his second double of the game.

NPR: Lester Pitches 1-Hitter, Red Sox Top Blue Jays 5-0

Ancic appeared refreshed after another rain delay but his second double fault came just at the wrong time, allowing Federer to break for a 6-5 lead.

BBC: Ruthless Federer races past Ancic