Oh, I'd like you to meet my sister-in-law Marilyn.
噢 我来向你介绍我嫂子Marilyn。
In for a penny,in for a pound.
做事一开头,就要做到底;一不做,二不休。
He passed his exams, and even better, when he left university he had earned enough money to start his own business, offering guide services to tourists.