高球扣杀的英文：
overhead smash, overhand smash

The hawk is hovering overhead.
鹰在头顶上盘旋。

That was the performance overhead of the profiler.
这就是分析器的性能开销。

Overhead variances may be usefully considered as variable overhead variances and fixed overhead variances.
我们可以把管理费用分为可变费用和固定费用两种。

That man is smashed.
那个男人喝醉了。

a smashing success.
轰动性的成功

break [smash] the jinx
破解霉运;

overhand service
高手发球

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、手发球和钩手发球或抡臂钩手发球。

Child must throw ball overhand 3 feet to within arm's reach of tester
小儿从肩上抛球，抛至了天外的试验者手中就可记分。