If you say that something gives someone licence or a licence to act in a particular way, you mean that it gives them an excuse to behave in an irresponsible or excessive way. 借口
verb [vt. 及物动词]给…发许可证,批准;就…发许可证;按协议特许,授权
Jim is halfway to attaining his pilot's licence. 吉姆快要拿到他的飞行员执照了。
licence
“ -ence” ⌜ 表示状态或质量的 - indicating the state or quality of ~ ⌟