namely（即，就是）前面通常用逗號秀菱，后面不能直接用逗號，即不用?namely,?請根據(jù)以下例句體會具體用法（摘自張道真主編《現(xiàn)代英語用法詞典》修訂版namely詞條)：
Only one person can do the job,?namely?you.
The means of production,?namely?factories, mines and land should be owned by the state.
Three students were mentioned,?namely?John, Sarah and Sylvia.
更多例句如:
Only one boy was absent,?namely?Harry.?只有一個男孩兒缺席，就是哈里志群。
She made a suggestion,?namely?that the student not be admitted.?她提出一個建議掺喻，即不錄取那個學生芭届。
They brought lunch,?namely?sandwiches, chips, and soda.?他們帶來了午飯，即三明治感耙、薯條和汽水褂乍。
Three students were mentioned,?namely?John, Sarah and Sylvia.?有三名學生被提到，即約翰即硼、薩拉和西爾維婭逃片。
I shall now turn to the fourth factor,?namely?markets.?我現(xiàn)在講第四個因素，也就是市場因素只酥。
I would like to buy a new car,?namely?a Mercedes.?我很想買一輛新汽車褥实，也就是買一輛梅塞德斯牌汽車。
The other change,?namely?the increase in electronic equipment, has slowed down.?其他變化裂允，即電器的增長损离，已經(jīng)開始緩慢下來。
但在某些特殊情況下也可能后接逗號(比如后一個疑問句時):
I have a question;?namely, should we sell the property or not??我有一個問題绝编，那就是我們要不要變賣財產(chǎn)僻澎？
