If it's actually hunger, eating something reasonable such as a piece of fruit rather than a chocolate bar might do the trick.

如果真是饥饿的话，那么选择合理的食物，譬如一片水果而不是一块巧克力，就可以奏效。

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To test future rocket designs, NASA is employing an age-old bar trick: Slowly and deliberately apply pressure to an aluminum can until it crumples. No foreheads will be involved, however.

美国国家航空航天局(NASA)将采用一种古老方法来测试未来火箭的设计方案，把一个没有盖子的大铝罐逐渐慢慢的加压，直至把它压碎。

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And then there's the trusty old salad bar trick: put healthier options closer than other choices and more people pick them.

对付沙拉也有个屡试不爽的把戏：将健康的品种放在更近的地方，这样更多的人们就会挑选它们。

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Thing is, was ditching the scroll wheel and that trick mirrored bar in favor of a joystick really the right way to go?

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Trick Dog, a bar in the Mission District that opened in January, is backed by Tony Conrad, a partner at True Ventures, and Digg Inc. co-founder and Google Ventures venture capitalist Kevin Rose, among others.

WSJ: Adding Spice to Tech Night Life

Drogba almost completed his hat-trick late on when he hit the bar with a free-kick, but by that stage the game was won and Arsenal's misery was complete.

BBC: Chelsea 2-0 Arsenal