词汇 | semicircle |
词根词缀 | 词源: 1520s, from semi- + circle. Semicircular is attested from early 15c. 词根记忆: 半圆(semi+circle圆)[semi-表示"半"] 词根词缀: semicirclesemicircle半圆(semi+circle圆) semi-表示”半”semimonthly半月刊(semi+monthly月刊) semicolony半殖民地(semi+colony殖民地) semiconductor半导体(semi+conductor导体) semicircle半圆(semi+circle圆) semiautomatic半自动的(semi+automatic自动的) |
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