Plummerblock
推力轴承
🗣️ 情景例句
I keep thinking about the dog -- about Gemma,
我一直在想那只狗 Gemma，
May I help you?
要我帮忙吗？
After taking off, we were flying low over the city and slowly gaining height,
起飞之后，我们在城市上空低低地飞行，然后慢慢爬高。