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1·For instance, mandating a four-sided fence around a pool can decrease risk of drowning.

例如，强制规定水池加装围栏可以减少溺水的危险。

2·pool fencing to reduce the risk of drowning;

水池设置栅栏以减少溺水危险；

3·Nobody goes drowning in my pool.

在我的泳池里没人会溺死。

4·The lifeguard jumped into the pool and rescued the drowning boy.

救生员跳进泳池里，救起那个溺水的男孩。

5·In order to reduce child drowning in the unattended ponds or swimming pools, a design method of a pool alarm sensor based on pulse-width anti-narrow is proposed.

为了减少无人看守的水池或游泳池中小孩的溺死事件，提出了一种基于脉宽反窄的水池警报传感器设计方法。

6·Today, I was doing swimming practice at the pool. I suddenly got breathless, dizzy, and felt like I was drowning.

今天我正在游泳池锻炼游泳，突然，觉得喘不上气来，还头晕，觉得本人快要淹死了。