Riskless
a. 无危险的
✅ 同义词
🗣️ 情景例句
and they needed the extra room.
他们需要多一些空间。
A dog will not howl if you beat him with a bone.
骨头打狗狗不叫。
and you may well wish to boost your pension income.
你就很希望能够提高你的养老金收入。