Unitane
二氧化钛
🗣️ 情景例句
when she goes back to Greece.
她回去希腊时。
Seldom seen, soon forgotten.
见得少，忘得快。
Here is a copy of itinerary we have worked out for you and your friends.Would you please have a look at it?
这是我们为你和你的朋友拟定的活动日程安排。请过目一下，好吗？