To The Management,
Border Force, Stansted:
(給一個不得不所以然的原因) Today is my 31st birthday, and having recently become a father I now realise have precious life is and how important it is to spend my time doing something that makes me, and other people, happy.
(告訴別人你的"action") For that reason I hereby give notice of my resignation, in order that I may devote my time and energy to my family, and to my cake business which has grown steadily over the past few years.
(維持善意，還不忘做生意) I wish the organization and my colleagues the best for the future and I remind you that, if you enjoy this cake, you can order more at www.mrcake.co.uk Sincerely, Chris Holmes (Mr. Cake)
(X) I want to widen my view .
(O) I want to expand my horizons.
Horizons的複數指「視野」；（知識、經驗等的）範圍」，拓展視野horizon用複數。Widen my view不是自然用法。
(X) I quit because I don’t want to keep doing the same thing.
(O) I quit because I don’t want to be stuck in a rut.
Rut是車輪的痕跡，看過車輪在泥濘裡打轉無法前進嗎？"stuck in a rut"的原意就是如此，它廣泛的引申為「週而復始的做著同樣的事情而無法突破」，需要嘗試新的挑戰最常用的一個成語。
(X) I’ve been here too long. I want to change the company.
(O) I’ve been here for too long.I want to move on.
Change the company是改變公司，換工作可以用career move或是change jobs。但move on聽來讓人舒服。
(X) I’m quitting because I want to try new thing.
(O) I’m quitting because I want to try something new.
Try new thing文法不對，假如你要嘗試的事是預期中的，你可以說try new things，但多半嘗試新事物，既是新的，就不在預期中，用try something new更切合實情。