hemicycle / ˈhemɪˈsaɪkl / n. 半圆形

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My seat is arranged to the center of the hemicycle in the conference room.

我的座位安排在半圆形座位区的中央。

hemisect / ˈhemɪˈsekt / v. 切成两半

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I hemisected the apple，using a knife. 我用刀把苹果切成两半。

hemisphere / ˈhemɪsfɪə(r) / n. 半球体

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We live in the southern hemisphere. 我们生活在南半球。