1,The crowd,a cross section of those who live in this great city,stretched halfway down the block.尤其,a cross section 是什么意思?
2,I'd say that African-Americans were slightly overrepresented in the crowd.
3,There was plenty of Spanish being spoken and, this being New York,cards from the city's many ethnic groups dotted the floral displays.
5,The modernist touch came in the number of notes that had been written on cumputers;people sure do love playing with their fonts.
6,middleaged
7,since she was 6, my younger daughter has firmly said that John Kennedy was her favorite president.这里的since是什么意思呀?
8,Ellis Cose nicely dissects the distinctions between today's "virtual"grief and the "real"kind.
9,John Kennedy was a man unformed
10,it is lost innocence.
11,you can make a powerful case, i believe, that.....
12,To that marvelous dispensation the young president added the final touches-----glamour,grace and energy.His death was followed by a decade and a half of horror---
13,dislocation
14,It is a shot taken on one of those wonderful New England days when the sky is an impossible shade of blue,
15,But the photo flatters to deceive:
16,I've shivered on Cape Cod in June,
大家都来看看,能回答几个帮我回答几个啊,不胜感谢!!

1,The crowd,a cross section of those who live in this great city,stretched halfway down the block.尤其,a cross section 是什么意思?住在这座伟大的城市里的人们组成人群，沿着街区上前推进。A cross section指的是一个整体中的部分，可以翻译成典型的人群
2,I'd say that African-Americans were slightly overrepresented in the crowd. 可以这样说人群中非洲裔美国人占大多数，Slightly overrepresent指的是人数上略占上锋
3,There was plenty of Spanish being spoken and, this being New York,cards from the city's many ethnic groups dotted the floral displays.
5,The modernist touch came in the number of notes that had been written on cumputers;people sure do love playing with their fonts.
6,middleaged 中年的
7,since she was 6, my younger daughter has firmly said that John Kennedy was her favorite president.这里的since是什么意思呀? 我的小女儿从她六岁起就坚定地说约翰肯尼迪就是她最喜欢的总统。Since是自从什么什么时候
8,Ellis Cose nicely dissects the distinctions between today's "virtual"grief and the "real"kind. Ellis Cose清楚明确地区分好了意想的（虚拟的）与真实的痛苦的差别
9,John Kennedy was a man unformed 约翰肯尼迪是一个不成熟的人
10,it is lost innocence. 失去的清白
11,you can make a powerful case, i believe, that..... 你可以举一个有力的案例，我相信。。。。。
12,To that marvelous dispensation the young president added the final touches-----glamour,grace and energy.His death was followed by a decade and a half of horror---
13,dislocation 断层
14,It is a shot taken on one of those wonderful New England days when the sky is an impossible shade of blue, 这张照片是在新英格兰幸福生活时拍的，那时候，天空是浓得化不开的蓝，
15,But the photo flatters to deceive: 照片太耀眼了真让人无法相信
16,I've shivered on Cape Cod in June, 我在六月的Cod角浑身发抖
其他的因为没有上下文，翻不出来