研究上下义关系可以帮助学生措词准确、生动，同时扩大其词汇量；
The research into hyponymy is of importance in language teaching, for it can help students to choose words accurately and vividly when writing and enlarge their vocabulary.
主观题型中需要进行概括和总结的这一特点又和上下义关系理论的特点相吻合。
But subjective questions and hyponymy theory share the same characteristic, which is to generate the main idea and draw conclusions.
韩礼德和哈桑（1976，1985）将词汇衔接分为词汇重复关系、同义关系、上下义关系和词汇搭配四类。
According to their categorization (1976, 1985), lexical cohesion is composed of reiteration, synonymy, hyponymy and collocation, etc.
顾名思义，此缓存包含上下文数据。
我不知道Self策划这事儿多久了，不过看起来真是 无懈可击的。 【air-tight本意是指密封的，引申义很明显，“无懈可击、天衣无缝”根据上下文选择咯。】
I don't know how long Self has been planning this thing and from the looks of it,it's pretty air-tight.
在同一种语篇类型中不同的上下文所选用的投射关系也不同，这种不同很大程度上与动词的体义有关。
Discourses of the same type but differ in contexts have different projection relations, which to a large extend, has something to do with the meaning of the verb.
“原来”所在句为感叹句，前后有疑问句，上下文有表短时、短暂动作的词语或出乎意料义副词，在一些固定的判断句中时，不能换为“其实”；
When both words are in negative sentences, or with recognize-meaning verbs above, they can be changed with each other, but the words are still emphasized on different modal.
“原来”所在句为感叹句，前后有疑问句，上下文有表短时、短暂动作的词语或出乎意料义副词，在一些固定的判断句中时，不能换为“其实”；
When both words are in negative sentences, or with recognize-meaning verbs above, they can be changed with each other, but the words are still emphasized on different modal.
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