Collisionless
无碰撞的
🗣️ 情景例句
How much do you want for this?
这件东西你想卖多少钱？
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
Can you spell it, please?
请您把它拼出来好吗？