Parallaxometer
視差計
??? 情景例句
If we're all prepared to recycle paper, thousands of trees could be saved every day.
如果紙能被循環(huán)利用，那么每天千千萬萬的樹木就可得以挽救。
Excuse me. Could you give me change for a dollar?
勞駕，你能不能換1元零錢給我？
What are your next plans?
下一步你計劃干些什么呢？