人生必修課

---Article文章
Diving without an aqualung is often referred to as 'skin diving' or 'snorkeling'.
不使用水肺的潛水通常被稱為“輕裝潛水”或“浮潛”。

Both can use a mask, snorkel, and fins, but freediving will always involve a breath-hold, no matter how deep you go.
兩者都可以使用面罩、通氣管和腳蹼，但自由潛水總是需要閉氣，無論你潛多深。

Humans first started freediving through necessity, for food, trade-able items or items lost overboard.
人類最初出於需要而開始自由潛水，以獲取食物、可交易物品或落水物品。

However, in more recent times, freediving has changed into a recreational activity, a way to take photos, catch food, and as
a sport.
然而，近年來，自由潛水已轉變為一種娛樂活動，一種拍照、捕捉食物的方式，並作為一種娛樂活動及一種運動。

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(1)Aqualung (N.)水肺:A piece of equipment that provides a diver with air, and which they wear on their backs.
You need to know how to use an aqualung before diving.潛水之前,你要知道如何使用水肺

(2)Overboard (Adv.)落水:Over the side of a boat or ship and into the water.
Someone had fallen overboard because of the big wave.因為大浪所以有個人落水

(3)Recreational (Adj.)娛樂的:Connected with activities that people do for pleasure when they are not working.
What is your recreational activity.(您的休閒活動是什麼)

(4)Discipline (N.) 紀律:Training that makes people more willing to obey or more able to control themselves.
I don't have enough discipline to save money.(我沒有足夠的自律來省錢)

(5)Variable (Adj.)易變的:Likely to change often
Interest rates can be highly variable.(利率可能變化很大)

(6)Dynamic (Adj.) 動態的:Continuously changing or developing.
Business is a dynamic innovation process.(商業是一個動態的創新過程)

--Idioms for Sea與海相關的成語
(1)be a big fish in a small pond 做小池塘裡的大魚
You are powerful or important to a small group of people.You are in your comfort zone.
對於一小群人來說，你很強大或很重要。你處於自己的舒適區。

(2)Like a fish out of water 就像魚離開水一樣
You are in an unfamiliar situation.你處於一個陌生的境地

(3)Drink like a fish像魚一樣喝酒
Drink too much alcohol.喝太多酒精飲料

(4)Have a whale of a time享受鯨魚時光
You are having a good time 你玩得很開心