Nonconservative
非保守的, 不可逆流的
🗣️ 情景例句
He worked his way through college.
他半工半读念完大学。
What are those?
那些是什么？
Good idea! It's much better than having classes! Can I go, too?
好主意！这比上课好得多！我也可以去吗？