Out on a limb

    有点冒险

    A: Have you seen my dog? He's nowhere to be found near the house.

    B: I'm going to go out on a limb and say he jumped over the fence and got loose.

    A: Oh, no! Can you help me find it?

    B: OK, I'm going out on a limb to help you, which means I may be late for a dinner date at 6 p.m.

    Note: This phrase either means "putting yourself in a risky or precarious situation in order to help someone," or "taking a wild guess or expressing an opinion that might not be shared by others. It likely originated from tree climbing and the danger involved when a person goes out onto the limbs (or branches) of a tree in a literal way. Tree branches can potentially break under the weight of a person. Hence, when a person decides to take a risk, it's as if they are figuratively "going out on a limb."