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1·This, they said, helps guard against the aging process.

他们说，这有助于防止衰老过程。

2·We should learn to guard against some illnesses from a young age.

我们应该从小就学会提防一些疾病。

3·At the outset, it seemed necessary to be on guard against the other two.

一开始，似乎有必要提防另外两个。

4·If you want to live a long and healthy life, you need to begin to guard against stress from a young age.

如果你想要过上长寿健康的生活，你需要从年轻时就开始提防压力。

5·Security cameras have been installed to guard against poachers.

已经安装了安防摄像机来防范偷猎者。《柯林斯英汉双解大词典》

6·The armed forces were on high alert to guard against any retaliation.

武装部队保持高度警惕，以防发生任何报复行为。《柯林斯英汉双解大词典》

7·Be on your guard against pickpockets.

提防扒手。《新英汉大辞典》

8·It'll help guard against fatigue.

这可以帮你战胜疲劳。

9·This is a risk we must guard against.

这是我们必须防范的风险。

10·Guard against potential native memory leak.

注意预防潜在的本地内存泄露。