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- There are three basic kinds of the underhand serve,the overhand serve,and the hook serve or roundhouse serve. 有三种基本的发球方法：下手发球，上手发球和钩手发球或大力(抡臂)钩手发球。
- How mang ways can the overhand serves be played in? 有多少种上手发球的方法?
- There are three basic kinds of the underhand serve, the overhand serve, and the hook serve or roundhouse serve. 有三种基本的发球方法:下手发球，上手发球和钩手发球或大力(抡臂)钩手发球。
- There are three basic kinds of services: the understand serve, the overhand serve, and the hook serve or roundhouse serve. 基本上有三种:下手发球、上手发球和钩手发球或抡臂钩手发球。
- N: There are three basic kinds of services: the understand serve, the overhand serve, and the hook serve or roundhouse serve. 基本上有三种：下手发球、上手发球和钩手发球或抡臂钩手发球。
- L: How mang ways can the overhand serves be played in ? 有多少种上手发球的方法?
- How mang ways can the overhand serves be played in ? 有多少种上手发球的方法？
- Overhand serves may be played in different ways,such as the overhand floater serve; the overhand spin serve; and the power serve. 上手发球有不同的方法，例如上手飘球；上手旋转球和大力发球等。
- N: Overhand serves may be played in differents ways, such as the overhand floater serve, the overhand spin serve and the power serve. 上手发球有不同的方法，例如上手飘球、上手旋转球和大力发球等。
- Overhand serves may be played in differents ways, such as the overhand floater serve, the overhand spin serve and the power serve. 上手发球有不同的方法,例如上手飘球、上手旋转球和大力发球等。
- Overhand serves may be played in different ways, such as the overhand floater serve; the overhand spin serve; and the power serve. 上手发球有不同的方法，例如上手飘球；上手旋转球和大力发球等。
- He is an interested party and can not serve on the jury. 他是与案件有关的当事人，不能做陪审团的成员。
- I think it my duty to serve the people. 我认为为人民服务是我的责任。
- service: underhand serve, overhand serve, hook serve, round horse serve, 发球：上手发球，下手发球，勾手发球，打抡臂发球。
- He is not the kind of man I'd like to serve under. 我不喜欢在他这种人手下干事。
- He prefers to go where he can serve the people. 他宁愿到能为人民服务的地方去。
- The large box in his room can serve as a desk too. 他房间里的那只大箱子也可以当桌子用。
- His bull will come to serve our cows tomorrow. 明天我们用他的公牛与我们的母牛配种。
- The temple will serve for an operating room. 那座庙将用来作为手术室。
- He is only too willing to serve friends. 他极愿为朋友效劳。
