1. 单个的;单一的;唯一的
You use single to emphasize that you are referring to one thing, and no more than one thing.
e.g. A single shot rang out...
传来一声响亮的枪声。
e.g. Over six hundred people were wounded in a single day...
仅一天中就有 600 多人受伤。
2. 单独的;各自的
You use single to indicate that you are considering something on its own and separately from other things like it.
single什么意思
e.g. Every single house in town had been damaged...
镇上每栋房子都遭到了破坏。
e.g. The Middle East is the world's single most important source of oil.
中东是世界上最为重要的一个产油地。
3. 单身的;未婚的
Someone who is single is not married. You can also use single to describe someone who does not have a girlfriend or boyfriend.
e.g. Is it difficult being a single mother?...
做单身妈妈难吗？
e.g. I now have to face the rest of my life as a single person...
我现在不得不孤单一人度过余生。
4. (房间)单人的，单人使用的
A single room is a room intended for one person to stay or live in.
e.g. A single room at the Astir Hotel costs £56 a night.
阿斯蒂尔酒店的单人间价格是 56 英镑一晚。
5. (床)单人的
A single bed is wide enough for one person to sleep in.
6. (票)单程的
A single ticket is a ticket for a journey from one place to another but not back again.
e.g. The price of a single ticket is thirty-nine pounds.
单程票的价格是 39 英镑。