sewing machine缝纫机例句：With the sewing machine I can produce two times more work than sewing by hand.有这台缝纫机，我的产出是手缝的三倍。let bygones be bygones让过去的事成为历史吧例句： Don't take it too hard. Let bygones be bygones.不要放在心上，过去的事就让它过去吧。What is the weather like today?今天天气怎么样？例句：A: What is the weather like today? B: I'm afraid it'll rain soon. A：今天天气怎么样？B：恐怕很快就要下雨了。