Tipaque
二氧化钛
🗣️ 情景例句
Oh, not at all.
噢 一点也不。
The knife is dirty, Would you bring me a clean one, please?
这刀子是脏的，请你拿个干净的给我。
To escape from the Earth in a rocket, one must travel at seven miles per second.
要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，