You’re trying to exercise willpower—to avoid eating that second piece of cake or buying an electronic toy you don’t really need.

假定你正在练习意志力，比如不去吃不该吃的蛋糕，不去买不需要的电子产品。

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You're trying to exercise willpower-to avoid eating that second piece of cake or buying an electronic toy you don't really need. Try firming up your muscles.

假如你正在锻炼自控力——例如不吃第二块蛋糕，或者是不买不需要的电子玩具——那就尝试绷紧你的肌肉吧，任何肌肉都可以。

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Undergraduate's social practice is effective approach to make undergraduate know society, understand the situation of country, increase ability, offer youth, exercise willpower, cultivate character.

大学生社会实践是大学生在实践中了解社会、认识国情，增长才干、奉献社会，锻炼毅力、培养品格的有效途径。

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