Over the years one may well become an authority on one’s hobby and will very probably be asked to give informal talks to little gatherings and then, if successful, to larger audiences.

一人积了多年经验会成为自己这种爱好的权威，很可能应邀在小型集会上作非正式的讲话。如果讲得好，可能向更多的人发表演说。

属类：学习英语-新概念英语-第三册

They invariably live nearby and are always available for an informal chat or an evening’s entertainment.

因为他们都住在附近，你随时可以同他们聊天或在晚上一起娱乐。

属类：学习英语-新概念英语-第三册

It’s quite an informal gathering you needn’t dress up for it

这是一次很随便的聚会;你不必精心打扮。

属类：学习英语-同义词辨析-

"Try" is more informal . You use it while speaking with friends and family. "Attempt" is more formal. You often use it while speaking and writing about reaching a goal.

Try更为不正式。你在跟亲朋好友交谈时会用到这个单词。Attempt更为正式。你经常会在提到实现某个目标时用到它。

属类：学习英语-Ask a Teacher 名师答疑-名师答疑：Try和Attempt之间的区别

Informal : Sorry, but I gotta do my homework. You oughta do yours, too.

非正式：对不起，我要写作业，你也应该写。

属类：学习英语-Ask a Teacher 名师答疑-名师答疑：Wanna和Gonna等简化形式的使用

Informal : Whatcha gonna do tonight? Wanna see a movie?

非正式：晚上干啥？看电影吗？

属类：学习英语-Ask a Teacher 名师答疑-名师答疑：Wanna和Gonna等简化形式的使用

Reduced forms are informal speech

简化形式是非正式口语

属类：学习英语-Ask a Teacher 名师答疑-名师答疑：Wanna和Gonna等简化形式的使用

Here are a few examples of reduced forms in formal and informal speech:

以下是正式和非正式口语中几个简化形式的例子：

属类：学习英语-Ask a Teacher 名师答疑-名师答疑：Wanna和Gonna等简化形式的使用