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- Sleep is necessary to health. 睡眠对健康是必要的。
- Exercise is necessary to health. 运动对健康是必要的.
- Sleep is necessary to/for one's health. 睡眠对健康是必不可少的.
- I think it is necessary to learn science. 我认为学科学是必要的。
- Sometimes it is necessary to trim those policies. 有时需要改变原先制定的那些政策。
- Patience combined with diligence is necessary to success. 耐心结合勤奋是成功所必需的。
- It is necessary to get rid of bureaucratic practices. 必须清除官僚习气。
- Potassium is necessary to the existence of all living things. 钾是所有生物生存必须的。
- It is necessary to remove plaque by brushing one's teeth. 需刷牙以去除牙斑。
- It is necessary to root out corruption in government. 铲除政府内部地腐败现象很有必要。
- Lack of sleep is detrimental to one's health. 缺乏睡眠有害健康。
- It is necessary to delimit the anomaly clearly. 清楚地圈定异常是必要的。
- Food is necessary to maintain life. 食物是维持生命所必需的。
- In many cases it is necessary to "move away". 在许多情况下,“走”是必须的。
- It is necessary to arrive at a correct conclusion. 必须作出正确结论。
- Nutrition and sleep are both necessary to health; this gives us rest,and that gives us energy. 营养和睡眠封健康而言均属必要;后者给予我们休憩,前者给予我们精力。
- It is necessary to chip off the bark of the tree. 有必要把这树皮扒下来。
- Nutrition and sleep are both necessary to health; this gives us rest, and that gives us energy. 营养和睡眠封健康而言均属必要;後者给予我们休憩,前者给予我们精力。
- It is necessary to end this state of affairs. 必须结束这一局面。
- It is necessary to protect trees from the frost. 必须保护树木免受霜冻。