單一詞在句首用逗點隔開的用法。

 

 1.  Use commas set off introductory elements of the sentence.  Sometimes, at the beginning of a sentence, the conjunctive adverbs (or adverbial conjunction) will act as a kind of summing up device or transition, and when it does, it is often set off from the rest of the sentence with a comma:

 

引導詞句(副詞),用逗點隔開, 形容主要.  

 

有時,在句副詞連接詞作為總結或轉折時,用逗點隔開其餘的句子 (please see http://grammar.ccc.commnet.edu/grammar/transitions.htm#transitions for the list of 副詞連接詞 that apply)

 

 

For example:

 

(a) Accidentally, he stepped on a dog’s shits.

=> Accidentally 副詞用來形容主要 “he stepped on a dog’s shits”.

= He stepped on a dog’s shits accidentally.

 

(b) Gradually, he has come to his senses.

= He has come to his senses gradually.

 

(a) So, the sheriff peremptorily removed the child from the custody of his parents
=> So
副詞連接詞作為總結語

(b) Still, I am uncomfortable staying with him.
=> Still
副詞連接詞作為轉

 

 

2.  Use commas to set off non-essential elements of the sentence.

用逗點隔開句子的非必要的資料

 

For example:

 

(a) Vegetable, which is good for your health, should be eaten everyday.

= Vegetable should be eaten everyday.

=> Vegetable (名詞) 主詞

 

Which is good for your health 句子的非必要的資料(用來形容主詞 Vegetable) , 可省略.

 

3. Use a comma to set off parenthetical elements such as appositives.  When both a city's name and that city's state or country's name are mentioned together, the state or country's name is treated as a parenthetical element.

 

用逗點隔開插入語, 例如同位語, 城市,國家

 

For example:

 

(a) Tom, a college professor, recently made up his mind to run for the next Mayor's election.

=> Tom (名詞) a college professor 同位語

 

(b) Taipei , Taiwan , boasts having the best seafood in the world.

 

 

4.  Use a comma to avoid confusion.

 

使用逗號避免

 

For example:

Outside, the garden was cluttered with a huge variety of flowers.
=> Without the comma, it will mean “outside the garden” instead of “outside”, and the grammar will be inaccurate.

不用逗號,它將讓人認為那是「在花園之外」而不是「在外面」, 并且語法也是不對的。

 

(不用逗號正確語法: Outside the garden were clusters of a huge variety of flowers.)

 

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