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- There are three optional rules you can apply to your coupon offer. To enable these rules, click the checkbox next to each one you want and provide the additional values if required. 有三种可选规则供您应用到您的优惠券上。要启用这些规则，请点击您想要的规则旁边的选框，如有要求输入额外的值，请填好。
- The insurance cover is optional. 保险范围可以随意选择。
- A 4-speed automatic transmission is optional. 四段自动变速器是可自由选择的。
- It's Bill's wife who really rules the roost in that family. 在比尔家里，真正当家的是她的老婆。
- She must be made to comply with the rules. 必须强迫她遵守这些规则。
- An optional academic course or subject. 选修的科目选修课程或课题
- I am thoroughly conversant with all the rules. 我对所有的规则了如指掌。
- If you join the club you must abide by its rules. 如果你加入那个俱乐部，你就得遵守其规章。
- The cassette player is an optional extra in this make of car. 这种型号汽车如需盒式磁带唱机费用另计。
- When do the new safety rules come into force? 新的安全规则何时生效?
- The rules will suffice for all ordinary needs. 这些规定将能满足所有一般场合的需要。
- It's no use kicking against the rules. 反对这些规定是徒劳的。
- You must do it; you have little option. 你必须做,你没有选择的余地。
- It is at your option to stay or leave. 去留随你的便。
- I'm committed not to violate the rules. 我有义务不违反规定。
- You must do it; you have no option. 你必须做，你没有选择的余地。
- She has taken an option on that piece of land. 她已取得那块土地的购置权。
- You can't lay down hard and fast rules. 规则不能定得太严太死。
- Permitting discretion; optional. 允许自行处理的; 随意的
- Many old rules are not in force any more. 许多旧的制度都已经失效。
