98：i.e.和e.g.有什么区别？

What's the difference between i.e. and e.g.?

Answer: You use i.e. when you mean "that is." The origin of i.e. is "id est." You use i.e. when you're restating the idea (to be more explicit) or expanding upon it. Example: We provide all retailers with the standard discount, i.e., 10%.

You use e.g. when you mean "for example." The origin of e.g. is "exempli gratia." Example: His book has a number of elements, e.g., punctuation, capitalization, parts of a sentence, and confusing words.

In American English, generally follow i.e. and e.g. with a comma. Use abbreviated forms like these only in informal or technical documents, or documents where space is at a premium (catalogs, forms, etc.).

问题98：i.e.和e.g.有什么区别？

回答：如果你想说“that is（也就是说）”的时候，就用i.e.，它起源于拉丁词“id est”。如果你想重申一个想法，表达得更直接，或是补充说明这个想法的时候就用i.e.。

例如：We provide all retailers with the standard discount, i.e., 10%.

如果你想说的是“for example（例如）”的话，就用e.g.，它起源于拉丁词“exempli gratia”。

例如：His book has a number of elements, e.g., punctuation, capitalization, parts of a sentence, and confusing words.

在美式英语中，i.e.和e.g.后面通常要加逗号。只有在非正式文体，科技性文体或是空间有限的地方（目录，表格等）才采用这样的缩写。