Cut the circular cake in half and set each semicircle against adjoining sides of the square to form the top of the heart.(把圓形蛋糕切成兩半，把每個半圓放在正方形的兩邊，形成心形的頂部。)

But when the sun, the South there is a semicircle.(可是艷陽的時候，南方出現了一個半圓形。)

Then it turned in a semicircle, ran straight again.(然后它轉半個圈，再沿直線跑。)

The steam was shut off, and the Abraham Lincoln, beating to port, described a semicircle.(汽門立刻被關掉了，林肯號從左舷轉了一百八十度。)

Result shows that the trunk was short and the canopy shaped as the natural semicircle.(結果表明，主干較矮，樹冠為自然半圓頭形，冠幅略大于冠厚。)

With the blocking idea, the watermark is embedded into the Fourier semicircle region.(該算法基于分塊思想將水印嵌入到傅立葉頻域的半圓形區域。)

We sat in a semicircle facing the teacher.(我們面對著老師坐成半圓形。)

We sat in a semicircle round the fire.(我們坐在爐火前，圍成一個半圓形。)

She found that people were gathering around her in a semicircle as she read.(她發現在她閱讀的時候人們以半原形狀圍在她周圍。)

It's called the Ring of Fire, a semicircle of violently shifting plates and volcanoes that runs along the edges of the Pacific Ocean.(這里被稱為火圈帶，一個由劇烈移動的板塊和火山組成的半圓形區域，分布在太平洋沿岸。)