A：What are you looking for?你在找什么呀?
B：I lost one of my contact lenses, and I’m searching high and low for it.我丢了一只隐形眼镜，我正到处在找。
A：Where did you lose it? Maybe I can help you to find it.你掉在哪儿呢?也许我能帮你找到。
B：Thank you very much. I think I lost it near the window.太谢谢了，就掉在窗边。