Riskless
a. 无危险的
✅ 同义词
🗣️ 情景例句
May I have headphones for the in-flight movie?
我可以要一副耳机来欣赏飞机上的电影吗？
Hope deferred makes the heart sick.
希望迟迟未实现，使人心烦意撩乱。
He then changed into overalls and spent the next eight hours as a dustman.
然后换上工作服，当8个小时清洁工。