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discovery
scientist
Formal and informal language
When we speak or write, we can use formal and informal language. We use formal language with our teachers or unfamiliar people. However, when we speak or write to our friends, we use informal language.
our teachers,
unfamiliar people
our friends
Lots of love,
Yours,
…
Faithfully yours,
Yours faithfully
Endings
Hi, Hello …
Dear Mr / Mrs / Ms…,
Ladies and gentleman
Greetings
Informal
Formal
we’ll, isn’t,
I’d rather…
Contractions
（缩约）
esp. Dec. Sat.
…
Abbreviations
（缩写）
have a big mouth (喋喋不休）
Idioms (习语，土话）
Informal