Riskless
a. 无危险的
✅ 同义词
🗣️ 情景例句
All window seats are sold out.
所有靠窗口的位子都卖光了。
All are not hunters that blow the horn.
吹号角的未必都是猎人。
No, it isn't. It's a Japanese car.
不是。那是一辆日本产的小汽车。