Photocatalyst
n. 光催化剂
🗣️ 情景例句
it's going to be too late when I do remember.
等我想起来时已经太晚了。
We have an extended warranty available at extra cost.
对于额外价钱我们有较长的保证期限。
As the Commanding Officer explained later, one half of the station did not know what the other half was doing!
正如指挥官后来解释的那样，基地的这半边不知道那半边正在干什么！