您要查找的是不是：
- optional membership class 随意属籍类别
- The insurance cover is optional. 保险范围可以随意选择。
- Class membership is limited to 20. 班级人数限定在20名以内。
- He is excluded from membership of the society. 他被拒绝入会。
- A 4-speed automatic transmission is optional. 四段自动变速器是可自由选择的。
- We are trying to increase our membership. 我们正准备增收会员。
- Kindly send us two samples of each class quote for. 报价时，请对每一个等级的各寄两个样品。
- I must renew my membership of the sailing club. 我必须延续我的航海俱乐部会员资格。
- The average age of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
- By1940 the Party's membership had risen to800000. 到1940年，党员人数增加到了80万人。
- Henry is nowhere when it comes to the race for class president. 亨利在竞选级长中被远远抛在后面。
- Membership of the club is restricted to men only. 该俱乐部的成员仅限于男士。
- An optional academic course or subject. 选修的科目选修课程或课题
- He has put in for membership of the club. 他已申请加入这家俱乐部。
- She got cold feet when asked to recite in class. 当她被叫起来在班上背诵时害怕了。
- I've already paid my membership dues. 我已经交了我的会员费。
- She was kept in for an hour for talking in class. 她因上课说话被罚留校一小时。
- The club excluded women from membership. 该俱乐部拒绝妇女入会。
- 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。
- Residence in the area qualifies you for membership. 只要在本区居住就可入会。
