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1·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》

2·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》

3·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。

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·To guard against splinters, he explained.

他解释说是为了预防踩到碎片。

6·Yes, all of us writers need to guard against extravagating.

是的，所有作家都要警惕不要逾越了这个界线。

7·This is an effective way to guard against malicious SQL injection.

这是抵御恶意 SQL 注入的有效方法。

8·A good plan is to guard against any of the types of loss mentioned above.

好的计划方法是防止出现上面提及的所有类型的丢失。

9·In fact, Asia needs to guard against a new and worrisome complacency.

事实上，亚洲需要警惕新的和令人担忧的自满。

10·Menopause is natural, and we need to guard against the over-medicalization of our lives.

更年期是自然规律，我们需要防止我们的生活过度医疗化。