I must take issue with your over what you said at the meeting.
我要和你好好谈谈你在会上说的那些话。(take issue with someone: 对某人的观点提出异议。)
A man becomes learned by asking questions.
要长学问,就得多问;多问则业精。
One day, he went to an exclusive shop in London and asked for 'Myrolite', the shop assistant looked puzzled and Harry repeated the word, slowly stressing each syllable.