Causeless
a. 无原因的, 偶然的
✅ 同义词
🗣️ 情景例句
Do you have any coupons?
你们有优惠卡吗？
While we were having breakfast,John was talking on the telephone.
当我们正在吃早餐时，约翰正在打电话。
Almost immediately he began to complain about the weather,
但紧接着他就开始抱怨那里的天气了。