除非被逼迫，他堅決拒絕說英語。
He resolutely refused to speak English unless forced to.
這個概念難以用英語來表達。
It's a concept that is difficult to render into English.
這是學英語的人常犯的錯誤。
It's a common mistake among learners of English.
在這方面法語和英語不同。
French and English differ in this respect.