请问这是个什么句子 and hence后为什么主谓都省略了? and hence中的and和谁是并列关系？ Under modern conditions,this
requires varying measures of centralized control and hence the help of
specialized scientists such as economists and operational research experts.
查词典 thick and fast 的意思是“又多又快”，但在具体的句子中不太好翻译（要比较符合汉语习惯的翻译）。比如： It was snowing thick and fast. Suggestions were coming in thick and fast. The enemy soldiers came thick and fast. New problems seem t...
A year and a half has passed.为什么句子必须单数谓语动词，仅仅是因 a year and a
half被看作整体吗？a
year and a half作主语可以用复数动词吗？如果不是用于时间呢？比如下面这句，谓语动词用单数还是复数：An apple and a
half _____ eaten by the...
Cline introduced her ideal，a Brooklyn woman named Sarah Kate Beaumont, who since 2008 has made all of her own clothes—and beautifully.and beautifully是什么语法结构，这个and感觉好奇怪，句子里只有一个状语beautifully，所以and是并列什么？这是参考里的结构图
...bella; but time has
sanctioned their eulogies. She was of the middle size, and well formed; with a
fair complexion, auburn hair, and clear blue eyes. There was a mingled gravity and sweetness in her countenance, and a
singular modesty in her mien, gracing, as it did, great firmness of purpose and
ea...
You could see red, white and yellow flowers in it.My mom and I used to walk around them and ____ (enjoy) their smells.填 enjoyed 和 enjoy 都可以吗？若用enjoy, 视为 and 并列了used to 后的 to walk 和 (to) enjoy,若用 enjoyed, 视为 and 并列了used to walk 和 enjoyed. 盼望专家...
Here
Strickland lived, coming seldom to Papeete, on the produce of the land. There
was a little stream that ran not far away, in which he bathed, and down this on
occasion would come a shoal of fish. Then the natives would assemble with
spears, and with much shouting would transfix the great startle...
...现】The Chinese government recently finalized a plan to set up a Giant Panda National Park (GPNP). ___56___ (cover) an area about three times ___57___ size of Yellowstone National Park, the GPNP will be one of the first national parks in the country. The plan will extend protection to a significan...
...4-h.htm#ch2 《A DOG'S TALE》When
I was well grown, at last, I was sold and taken away, and I never saw her
again. She was broken-hearted, and so was I, and we cried; but she comforted me
as well as she could, and said we were sent into this world for a wise and good
purpose, and must do our duti...
...over in front of thirty classmates. I really did not know whether I should
continue correcting him or simply drop the matter. I feared that my classmates
might grow tired of my efforts or even lose patience with me. After all, I did
care about how others would think of me. I realized that if I didn...
Mother and son lost contact when Nicholas was in his early twenties. 尼古拉斯20岁出头的时候母子就失去了联系。这里的mother and son（母子）前面没有用冠词，好像原来见过，father and son（父子）也不用冠词的，这是一种习惯吗？如果是 mother and ...
...m. after you've lived here for one or two years you get to know
the system and then that's quite good. You know how to use libraries and oh...
you get to know where to um... call in emergencies; um... you get to know... er...
trying to get a radio and understand the radio and all the... programmes t...