您要查找的是不是：
- single slip switch 单式交分道岔
- He recited the whole poem without making a single slip. 他一字不差地背诵了全诗。
- One single slip brings eternal regret, and looking back, your whole life has passed away. 一失足成千古恨, 再回头已过百年身。
- Months later, when the box was moved during remodeling, we found a single slip of paper inside. 数月后，当这个盒子在装修期间被移动时，我们发现里面仅有一张条子。
- lead seal single slip liner hanger 铅封单卡瓦衬管悬挂器
- The letter was written on a single sheet of paper. 这封信只用一张纸写成。
- One single, second class, to winchester, please. 买一张去温撤斯特单程二等票。
- He got over the stream with a single leap. 他一跃就跳过了小溪。
- The bridge crosses the river in a single span. 河上那座桥是单跨桥。
- Do you want a single or a return ticket? 你要单程票还是往返票?
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- I have had to work for every single penny I earned. 我挣的每一便士都是辛苦工作得来的。
- The huntsman fired a single shot at the lion and settled its hash. 猎人朝那只狮子开了一枪，把它打死了。
- Five twenties and ten single, please. 请给我5张20元的和10张1元的。
- double slip switch 双动转辙器
- She wore a single orchid on her evening dress. 她在晚礼服上缀着一朵兰花。
- Up to yesterday, I thought he was single. 直到昨天，我一直以为他是独身。
- Can you let me have a room with two single bed? 可以给我一间两张单人床的房间吗？
- One of four offspring born in a single birth. 四胞胎之一一胎出生的四个孩子中的一个
- For strong sewing use double, not single thread. 为了缝得牢，用双线，而不要用单线。
