sellin，abroad和export是同义词吗？
我认为答案是：它们是同义词。因为，sell abroad是卖到国外，在国外出售。export是出口，外销的意思。它们是同义词。不过，注意一下abroad本身是副词，前面不可以加介词的。还要普及一下，sell这个动词经常可以用主动语态表被动意义。例如：This kind of tea sells well in the north.
big什么意思及同义词？
sell big
大销售量
重点词汇
sell销售; 卖，售; 使好卖; 使接受，使赞成; 推销; 出卖; 经销; 欺骗; 失望; 推销术; 卖; 出售; 受欢迎; 有销路
双语例句
Instinet said CBX, which has been offering trade in Japanese equities since 2001, would reduce costs for institutions and broker-dealers when they buy or sell big blocks of shares and lessen the impact on share prices.
极讯表示，当机构和经纪商大规模买卖股票时，CBX可降低成本，并减少对股价的影响。自2001年起，CBX就一直提供日本股票交易服务。
sell被动语态怎么用？
sell的被动语态
一般现在时
The book is sold in The bookstore.
一般过去时
The dog wad sold yesterday.
一般将来时
The CD will be sold next month.
现在完成时
One billon products have been sold since 1985
过去完成时
100 pigs had been sold out by 2021
well和sell？
sell good 后需要接名词而sell well则不可以接 其实大多使用sell well
sell是实意动词.
sell well 意思是“畅销”；sell good 是“卖的东西质量好
例句:A machine of faulty design will not sell well.设计不良的机器销路不会好.
Silk handkerchiefs embroidered by hand sell well in the Western market.手绣的丝制手帕在西方市场销路很好.
A good book does not necessarily sell well.好书未必畅销.
The good quality will sell good.高质量会促进货品销路.
We sell good quality wines from Australia.我们销售品质优良的澳大利亚葡萄酒
通过语境还可以用 be in great demand 和have a ready market 来表达“畅销”
如：
These products are in great demand。那些产品非常紧俏畅销。
The feedback shows these handicrafts have a ready market in USA反馈表明这些手工艺品在美国的销路很好。
shop和at？
两种说法都是正确的 。在意思也没有太大的区别。细分起来，二者涵义主要区分如下：
at the shop 指在商店那个区域（含商店附近的商业区，附道路），表明某一时段的状态。
用at时就好像人与商店两者之间没什么从属关系。 如
l will buy something at the shop.
我要在商店里买点东西。
They are on sale at the shop.
他们在商场搞促销。
in the shop 强调的是在商场里面。in 表示人与商店之间有某种所属关系，表明某种职业或身份。例如：
I work in the shop .
我在这商场里上班。
They sell many kinds of watches in the shop.
他们在商店卖各种各样的手表。
There are lots of handicraft articles in the shop.
商场有许多工艺品。
