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。
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。
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。
The flies' trick lies in using timing instead of a neighborhood census to determine which cell becomes a bristle, Bar-Joseph and his colleagues report.
Bar-Joseph及其同事指出，果蝇是通过定时安排而不是对周边数目进行统计来决定哪个细胞发育成硬毛的。
A position indicator moves within the trick play bar and tells the user visually where his current position is within the program material.
位置指示器在所述播放时间棒中移动，并以可视方式告知用户其当前位置处于节目内容中所处。
A position indicator moves within the trick play bar and tells the user visually where his current position is within the program material.
位置指示器在所述播放时间棒中移动，并以可视方式告知用户其当前位置处于节目内容中所处。
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