講解
Today's key word is Pants
Pants 褲子
Pants are a piece of clothing that cover the lower part of your body and each leg. 美式英語中的褲子，跟trousers的意思一樣，但在英式英語中也指內褲，所以跟英國人說褲子的時候要小心誤會哦。

Here is an example:
He was wearing a pair of short pants and a T-shirt.
他當時穿著一條短褲和一件T恤。

And what are you wearing now?A pair of black pants or blue jeans maybe?有沒有想過不穿褲子，只穿內褲出門是個什么趕腳？想試試的同學，你的機會來了。

Each year in January, there is a day called “No pants day”. On “No pants day”, there will be lots of peopleriding the subway without wearing their pants. The mission started as a small prank（惡作劇） with seven guysin New York.有一天，7個男孩兒突發奇想，決定不穿褲子去坐地鐵看看人們的反應。本以為會被朝陽群眾舉報，沒想到！！！反而大受歡迎。

Now it has grown into an international celebration of silliness（蠢萌）, with dozens of cities around the worldparticipating(參加) each year. 在這個普天同慶的日子里，不論男女老少，去坐地鐵的時候不穿褲子，而且一定要站在地鐵里面像什么事情都沒有發生過一樣，不會被當成變態。The participants behave as if they do not know each other,andthey all wear winter coats, hats, scarves(圍巾), and gloves（手套）. The only unusual（不尋常） thing is theirlack of pants. But, but, 內褲還是一定要穿的。你有沒有興趣嘗試一下?。?br />