Hexahedral
a. 六面的, 六面体的
🗣️ 情景例句
This has been a hard course for me.
这门课对于我来说很难。
Sorry, I guess I wasn't thinking. I won't do it again.
对不起。我对这事没想过，下次不这样了。
and mechanical systems like a wound watch, or the sun,
像上紧发条的手表那样的机械装置，或太阳，