卡尔是一个非常内向的人,他总是很沉默,寡言少语。如果遇见你,他总是面带笑容地紧紧地握住你的手,算是向你打招呼。即使我们比邻而居已经五十多年了,但是还没有谁敢说他很了解卡尔的。在他退休以前,每天早晨,他都乘坐公共汽车去上班。每每看着他独自一人沿着街道走向公共汽车站的时 Carl is a very introverted person, he is always very silent, with few words. If you meet him, he always hold your hand with a smile, be regarded as greet you. Even though we have been in the community for more than fifty years, no one has yet dared to say that he knew Carl very well. Before he retired, he took a bus to work every morning. He often looked at him alone along the street to the bus stop