One person is OK
一个人───single;可以───sure
you still single?───你还是单身吗？
How much is a single to York?───去约克的单程票多少钱？
The single is titled "White Love."───这支单曲名为《白色之恋》。
A single woman wanted someone to help her with the household chores, so she decided to get a pet to help out.───一个单身女人想找个人帮她做家务，于是她决定找一只宠物来帮忙。
As if moved by a single thought, they cried out in dismay and grief.───他们似乎是被一种念头所感动，全都悲痛难过地哭了起来。
Leisure activities are single, elderly leisure life is monotonous. For most elderly people, the children are not the focus.───娱乐休闲方式单一，公共文化参与程度低，老年人的闲暇生活较为单调。
Misfortunes never [seldom] come alone [single].
There was not a single person in the house.
The plant produced a single white bloom.
A single fare is 170 dollars.
Don't be disheartened by a single failure.