twos
Two is the number 2.
it takes two , it takes two to tango
If you say it takes two or it takes two to tango, you mean that a situation or argument involves two people and they are both therefore responsible for it.
Divorce is never the fault of one partner; it takes two.
离婚从来就不是哪一方的错,双方都有责任。
put two and two together
If you put two and two together, you work out the truth about something for yourself, by using the information that is available to you.
Putting two and two together, I assume that this was the car he used.
根据所掌握的信息判断,我认为这就是他曾开过的那辆车。