33. A Deadly Current p.213

（单词翻译）

　　It is a pity that every summer a few people drown at the beach. In some cases, these people were goodswimmers. So how did it happen? Riptide!
Riptide is a strong underwater current. It moves quickly away from shore and out to sea. It appearssuddenly and pulls its victim under and far off shore. Therefore, people should make it a rule never toswim too far out from the beach.
If you find yourself in a riptide, don't panic. And by no means should you try to go against the tideand swim back to shore. You'll tire yourself out and probably drown. Instead, swim parallel¹ to the beach.
A riptide is very narrow. So just a few strokes³ in the right direction and you'll be out of danger.

be all ears 洗耳恭听
You are dead right. 对极了    dead adv.绝对地，完全地   deadly 致命的
be at sea    When we talked about business, I was at sea.   I am puzzled by what you said.
I make it a rule to get off early.
be in the habit of
By no means is he nice.  By no means did he tell the truth.
instead, ... = on the contrary
stroke² n.(游泳的)划