all at once, all the same等等屬於咩詞類?

all at once, all the same屬phrases(片語)。
They are phrases serving an adverbial function(副詞用途的片語).



'all at once' and 'all the same' are both intensifiers(加強詞) conveying a greater or lesser emphasis to something.
For example:

When the rain fell, they left the playground all at once.--all at once 加重了left離開的動作。

Lucky or not, gamblers eventually lose money all the same.--all the same 加重了lose輸的嚴重性。

Hi,
They are called "phrases".




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屬於phrase = 片語