Given a collection of objects, along with some ordering constraints, such as "A must be before B, " find an order of the objects such that all the ordering constraints hold.
“物品A应摆放在物品B前”，请给出一个这些物品的摆放方案，使得所有约束都可以得到满足。
If Cust-A has an integrity constraint instructing that it must have a sales person, then Cust-A must first be updated to the new Sales-B before Sales-A is deleted.
如果Cust - a有一个完整性约束来指明它必须拥有一个销售人员，则Cust - a必须先更新到新的Sales - B，然后才能删除Sales - a。
This irreflexivity can be used to set up an equivalence relation—that is, for Key s a and b , if comp(a, b) is false and comp(b, a) is false , then a and b must be equivalent.
这个反自反性质可以用来建立一个等价关系(equivalence relation)—也就是，对于Keysa和b来说，如果comp(a,b)为false并且comp(b,a)也为false，那么我们就说a和b是等价的。
When code is to be moved from location A to location B, you must call a Check in action.
当代码从位置A移到位置B 时，您必须调用Check in 动作。
A: How long can you keep these books? B: it must be returned within a month.
甲：这本书你可以借多久？乙：必须一个月之内归还。
To qualify students must be at least 18 years old, healthy, possess a clean criminal record and have grades averaging above 80% or a B+/B under the letter-grade system.
为获得就业资格，学生必须年满18周岁，身体健康，无犯罪记录，平均成绩不低于80分（百分制）或B+/B（等级制）。
B. Oh, I made a mistake. I carried the black one today. It must be very like because there is nothing but a kazoo in it.
哦，错了，我今天带的是黑色的行李箱，上面有一只卡祖笛在上面。
When the B material is thick, can be diluted with a special diluent, must not be diluted with acid or oily thinner, so as not to affect the quality of the original product.
当乙料较稠时，可用专用稀释剂稀释，切不可用含酸性或含油性稀释剂稀释，以免影响原产品质量。
N. B. To use the skateboard ramp, or some outdoor activities, please contact the office as a SEPARATE FORM must be filled in.
如若使用滑板设施及某些户外活动，除填写本表格外，亦需多填一份表格。请亲临写字楼索取。
Party B must provide a duplicate copy of the construction designs and drawings, and both copies should be signed by both parties.
本工程由乙方进行设计，提供施工图纸一式两份，双方签字确认。
The latest shipping date of Party B must be 20days after Party A issuing the irrevocable documentary L/C at sight but within the latest shipping date stipulated in the《Purchase Sheet》.
乙方的交货期限为甲方向乙方开具不可撤消即期跟单信用证20日后且在《购货清单》中载明的交货期限内。
For Application Domain a to properly catch and handle the exception, it must be able to find the assembly containing the exception thrown by Application Domain b.
应用程序域a若想正确捕获和处理异常，它必须能够找到包含应用程序域b所引发的异常的程序集。
Party b guarantees party under this agreement between all the expenses of come-and-go subjects must be required by party a monthly check.
乙方在交纳承包费用及结算并结算应由其负担的一切费用后向甲方结算应得利润。
Party B must be provided with legal age who can be engaged with sale-work as a legal citizen. Legal and effective certificates must be offered by exotic people.
乙方须为具备法定年龄，年满18周岁系法律允许从事销售工作的合法公民，如境外人员必须持有合法有效的身份证件。
Party B must be provided with legal age who can be engaged with sale-work as a legal citizen. Legal and effective certificates must be offered by exotic people.
乙方须为具备法定年龄，年满18周岁系法律允许从事销售工作的合法公民，如境外人员必须持有合法有效的身份证件。
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