1、One digit can be used only once as an output, but countless times as a condition.───一个位用作输出只能一次，用作条件则可以无限次使用。
2、A port number can be used only once per computer system.───每个计算机XiTong一次只能使用一个端口号。
3、with respect to the medical apparatus that can be used only once according to regulations, they shall be destroyed after they are used.───对按照规定一次使用的医疗器具，应当在使用后予以销毁。
4、Article 13 The approval paper for entry and exit health quarantine on special goods can be used only once, and valid for 90 days.───第十三条出入境的特殊物品卫生检疫审批单只能使用一次，有效期限为90天。
5、Consumable textbook A book which can be written in by the student and therefore can be used only once.───学生用来做练习的书本。所以，它只可以使用一次。
6、You have a scale that can be used only once. How can you find out which bottle contains the 9 gram pills?───只使用一次天平，如何找出盛有9克药的那一瓶？
7、have a scale that can be used only once. How can you find out which bottle contains the 9 gram pills?───只使用一次天平，如何找出盛有9克药的那一瓶？
8、This spell could be used only once a year, when the planets were lined up in a certain way.───该魔咒一年只能使用一次，当几大行星以某种方式排列起来时才能使用。
9、Second, conscious sedation has to be used only once for the same patient to undergo both interventions simultaneously.───其次，对需要同时承受两种介入Cao作的同一患者，只需要进行一次清醒状态下的局麻处理。
be used only once（意思翻译）
只能使用一次
be used only once（相似词语短语）
1、for only once───只有一次
2、be used in───被用于
3、be used of───用于
4、be widely used───广泛应用
5、be used to───v.习惯于，适用于
6、be used for───用来做…；用于；被用于做某事
7、only once───只有一次；只此一遭
8、used be───曾经是
9、used to be───过去是；过去曾经是
be used only once（双语使用场景）
1、One digit can be used only once as an output, but countless times as a condition.───一个位用作输出只能一次，用作条件则可以无限次使用。
2、A port number can be used only once per computer system.───每个计算机XiTong一次只能使用一个端口号。
3、with respect to the medical apparatus that can be used only once according to regulations, they shall be destroyed after they are used.───对按照规定一次使用的医疗器具，应当在使用后予以销毁。
4、Article 13 The approval paper for entry and exit health quarantine on special goods can be used only once, and valid for 90 days.───第十三条出入境的特殊物品卫生检疫审批单只能使用一次，有效期限为90天。
5、Consumable textbook A book which can be written in by the student and therefore can be used only once.───学生用来做练习的书本。所以，它只可以使用一次。
6、You have a scale that can be used only once. How can you find out which bottle contains the 9 gram pills?───只使用一次天平，如何找出盛有9克药的那一瓶？
7、have a scale that can be used only once. How can you find out which bottle contains the 9 gram pills?───只使用一次天平，如何找出盛有9克药的那一瓶？
8、This spell could be used only once a year, when the planets were lined up in a certain way.───该魔咒一年只能使用一次，当几大行星以某种方式排列起来时才能使用。
9、Second, conscious sedation has to be used only once for the same patient to undergo both interventions simultaneously.───其次，对需要同时承受两种介入Cao作的同一患者，只需要进行一次清醒状态下的局麻处理。