您要查找的是不是：
- A single ribosome,especially one that is combined with a molecule of messenger RNA. 单核糖体单核糖体，尤指与信使核糖核酸的一个分子相结合的单核糖体。
- A single ribosome, especially one that is combined with a molecule of messenger RNA. 单核糖体单核糖体，尤指与信使核糖核酸的一个分子相结合的单核糖体
- The letter was written on a single sheet of paper. 这封信只用一张纸写成。
- He got over the stream with a single leap. 他一跃就跳过了小溪。
- In one extreme case, a single ribosomal protein gene known as RPL21 has spawned more than 140 pseudogene copies. 在一个极端的例子当中，有一个称为RPL21的基因，竟然衍生出140多个伪基因。
- 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?
- 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。
- She wore a single orchid on her evening dress. 她在晚礼服上缀着一朵兰花。
- 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
- A single grain of a cereal plant. 谷粒禾谷类作物的一个颗粒
- A single room with a bath, if possible. 如果可能，要一间带浴室的单人房。
- Do you want a single room or a double room? 您要单人房还是双人房？
- Producing two offspring in a single birth. 一产双胎的一次生产中生下两个子女
- Delay is not permissible, even for a single day. 不得延误，即使一日亦不可。
- He blew out three candles with a single puff. 他一口气吹灭了三根蜡烛。
- The police haven't got a single lead yet. 警察到现在还未获得一点线索。
- There was not a single person in the house. 屋子里一个人都没有。
- Never could one find a single wimple on this cloak. 从来没人能从这件斗篷上找到一个褶皱。
- I read the book at a single sitting. 我坐着一口气将这本书读完了。
