Para.1 1.I first began to learn Chinese ten years ago from a cheerful middle-aged visiting scholar from Sichuan who was living at the time in my apartr 非限制性定语从句 译交ston. 十年前，我开始与一位来自四川、性格开朗的中年访问 学者学中文。他当时就住在我波斯顿的公寓楼内。1. I first began to learn Chinese ten years ago from a cheerful middle-aged visiting scholar from Sichuan, who was living at the time in my apartment building in Boston. Para. 1 译文： 十年前，我开始与一位来自四川、性格开朗的中年访问 学者学中文。他当时就住在我波斯顿的公寓楼内。 非限制性定语从句