nonmandatory attendance
非强制性出勤
nonmandatory training
非强制培训
nonmandatory requirement
非强制性要求
was nonmandatory
是非强制的
being nonmandatory
具有非强制性
nonmandatory policy
非强制政策
nonmandatory course
非强制课程
considered nonmandatory
被认为是可选的
nonmandatory offer
非强制性提议
nonmandatory fee
非强制费用
attending the optional workshop is nonmandatory, but highly recommended.
参加可选的研讨会是非强制性的，但强烈推荐。
the safety briefing was nonmandatory for experienced pilots.
安全简报对于有经验的飞行员来说是非强制性的。
wearing a helmet during the bike tour was nonmandatory.
在自行车之旅中戴头盔是非强制的。
volunteering for the project is nonmandatory, but greatly appreciated.
为该项目做志愿者是非强制的，但非常受欢迎。
the overtime hours are nonmandatory, and employees can decline them.
加班时间是非强制的，员工可以拒绝。
contributing to the fundraising campaign is nonmandatory for all staff.
所有员工为筹款活动捐款都不是强制性的。
the introductory session on the software was nonmandatory.
关于该软件的入门课程是非强制的。
participating in the team-building activity was nonmandatory.
参加团队建设活动是非强制的。
bringing your own lunch is nonmandatory; the cafeteria is open.
自带午餐不是强制的；食堂是开放的。
attending the holiday party is nonmandatory, but festive cheer is encouraged.
参加节日派对是非强制的，但鼓励节日气氛。
submitting a proposal is nonmandatory, but can enhance your visibility.
提交提案不是强制的，但可以提高您的知名度。
nonmandatory attendance
非强制性出勤
nonmandatory training
非强制培训
nonmandatory requirement
非强制性要求
was nonmandatory
是非强制的
being nonmandatory
具有非强制性
nonmandatory policy
非强制政策
nonmandatory course
非强制课程
considered nonmandatory
被认为是可选的
nonmandatory offer
非强制性提议
nonmandatory fee
非强制费用
attending the optional workshop is nonmandatory, but highly recommended.
参加可选的研讨会是非强制性的，但强烈推荐。
the safety briefing was nonmandatory for experienced pilots.
安全简报对于有经验的飞行员来说是非强制性的。
wearing a helmet during the bike tour was nonmandatory.
在自行车之旅中戴头盔是非强制的。
volunteering for the project is nonmandatory, but greatly appreciated.
为该项目做志愿者是非强制的，但非常受欢迎。
the overtime hours are nonmandatory, and employees can decline them.
加班时间是非强制的，员工可以拒绝。
contributing to the fundraising campaign is nonmandatory for all staff.
所有员工为筹款活动捐款都不是强制性的。
the introductory session on the software was nonmandatory.
关于该软件的入门课程是非强制的。
participating in the team-building activity was nonmandatory.
参加团队建设活动是非强制的。
bringing your own lunch is nonmandatory; the cafeteria is open.
自带午餐不是强制的；食堂是开放的。
attending the holiday party is nonmandatory, but festive cheer is encouraged.
参加节日派对是非强制的，但鼓励节日气氛。
submitting a proposal is nonmandatory, but can enhance your visibility.
提交提案不是强制的，但可以提高您的知名度。
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