Riskless
a. 无危险的
✅ 同义词
🗣️ 情景例句
Sometimes he's very sad.
他有时很忧悒。
One cannot make bricks without straw.
巧妇难为无米之炊。
I say, let's go out for a drive next Sunday.
我说，咱们下星期天开车出去兜兜风吧。