Indefectible
a. 不败的, 无瑕的
✅ 同义词
🗣️ 情景例句
Mr. Lu, everything is OK. Your booking is from today through Wendnsday. Single room.
陆先生，没问题的。您从今天订到星期三，单人房。
Have you had breakfast already?
你已经吃了早餐吗？
So far, no man has travelled farther than the moon, but spaceships without people have reach other parts of the universe.
到目前为止，尚未有人到过比月球更远的地方，但无人驾驶的宇宙飞船已到达过宇宙的其它地方。