Swimming in the ocean
can be a dangerous activity, especially
when you aren't comfortable in the water.
The ocean is strong
and the direction of the water
can change at any moment.
The best way to keep yourself safe
is to make sure that you are a strong swimmer.
Practicing in a local swimming pool
is the best way to improve your strength.
It is also a good idea
never to go in the ocean alone
if you are not a strong swimmer.
Even though the ocean may look cool
and refreshing on a hot summer day,
it is full of dangers
that you should be aware of at all times.
在大海里游泳可能是一項危險的活動，
特別是當你在水中感到不適的時候。
海洋中的水流很強，而且方向隨時都可能會改變。
確保自己安全的最佳方法
就是確定自己是一個游泳健將。
在當地附近的游泳池內練習
是增進耐力的最佳方式。
如果你不是個游泳健將，
千萬不要獨自下海游泳。
即使在炎炎夏日海洋
看起來涼爽又令人心曠神怡，
但它卻是一個危機重重，
須讓人隨時提高警覺的地方。
(紅色部分不被強調)

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