您要查找的是不是：
- Be not a visit to Mr. George obligatory? 是不是必须我拜访乔治先生？
- You need a strong adhesive to bond wood to metal. 需要强力胶才能把木料粘在金属上。
- Attendance at school is obligatory. 上学是强制性的。
- This glue makes a good firm bond. 这种胶水粘得很结实。
- Common tastes form a bond between the two men. 共同的爱好使两人结交为朋友。
- The bond that binds the smugglers together is a rope of sand. 把走私犯联接起来的是条沙做的绳子，一碰就碎。
- Common interests formed a bond between us. 共同的利益把我们联系在一起。
- Identity of interests is the bond that unites them. 利害的一致是把他们联合起来的纽带。
- It is obligatory upon us to protect the world from nuclear war. 保护世界免於核子战争是我们的义务。
- obligatory bond [经] 强制性的债券
- A unifying bond, especially a marriage bond. 结合一种联结的纽带，尤指婚姻纽带
- Is this business trip obligatory? 这次出差是不是规定的？
- A bond of sympathy developed between members of the group. 该组织成员间产生了志同道合的凝聚力。
- I think compulsory education is obligatory. 我认为义务教育制是必须履行的。
- Be it obligatory on us to help the poor? 我们有义务帮助穷人吗?
- Is it obligatory on us to help the poor? 我们有义务帮助穷人吗?
- Attendance at primary school is obligatory. 上小学是义务的。
- The press conferences were almost obligatory. 这些新闻会议是不得已的。
- It is obligatory for us to obey the laws. 我们必须守法。
- I think abiding by the law is obligatory . 我认为遵守法规是必须履行的义务。
