技術英語の基本を学ぶ例文３００（中山裕木子著）

例文　月は地球の周りを公転しているために、相を有するように見える。

私案　The moon moves in orbit around the earth. It seems to cause a phase.

          The moon goes around the earth, which causes to look like a phase.

          The revolution around the earth causes the moon to seem to have a phase.

参考訳　The revolution of the moon around the earth causes the moon to appear to have phases.