They show no disposition to improvise or to take risks.他们不愿意临时凑合或冒险。Wearing helmets gave cyclists a false sense of security and encouraged them to take risks.戴头盔给骑自行车的人一种错误的安全感，怂恿他们去冒险。Managers use a full arsenal of moti...

冒险做可能失败的事...

take risks的音标：...