Is the door closed or open?

门开着还是关着？

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Only the applicable elements of a closed or open relay are shown.

仅标出了继电器闭合或开路时适用的元件。

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To determine whether a syllable is closed or open, look at the vowel.

首先看看英文教程中关于开音节与闭音节的描述。

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The system can be an open system, or it can be a closed system, or it can be isolated.

系统可以是开系，可以是闭系，或是孤立系。

麻省理工公开课 - 热力学与动力学课程节选

Information is exchanged in closed or open websites.

ECONOMIST: Cyberthugs | The

All New York markets closed early or did not open at all Monday, and all New York markets are closed Tuesday.

FORBES: Gold Ends Modestly Lower on Bearish Outside Markets; Trading Subdued as Major Storm Pounds U.S. East Coast

Cremation or burial, open casket, closed casket or no casket, private services or public services, low-cost approach or more costly approach, above ground or below ground or indoor or outdoor final resting place were just a few of the important decisions.

FORBES: Are You Ready For Both Death And Taxes?