Strong tides make swimming dangerous.是什么意思？

Strong tides make swimming dangerous.

在汹涌的潮水中游泳是危险的。

strong

adj. 强的，坚强的，强烈的，强壮的；adv. 强劲地，猛烈地，大大地，坚强地；

例句
Pamela was unrepentant about her strong language and abrasive remarks.
对于自己的激烈言辞和恶语相向，帕梅拉并无悔意。

tides

n. 潮( tide的名词复数 )，潮汐，潮水，潮流；

例句
High tides in the North Sea were funnelled down into the English Channel by a storm.
北海高涨的潮水被一场风暴推涌进英吉利海峡。

make

vt. 做，制造，生产，制定，使成为，使产生；vi. 开始，尝试，行进，增大；n. 制造，生产量，性格，形状，样式；

例句
I can't abide people who can't make up their minds...
我受不了优柔寡断的人。

swimming

n. 游泳，眩晕；v. 游泳( swim的现在分词)，漂浮，浸，泡，旋转；

例句
If the pool was open, we'd in all probability still be swimming in it...
如果游泳池还开着，我们完全可能还在里面游泳。

dangerous

adj. 危险的；

例句
He's taking a dangerous drug: it acts very fast on the central nervous system...
他正在服用一种危险的药物：这种药物能很快影响到中枢神经系统。