One big challenge in keeping unsafe aging drivers off the road is convincing them that it is time to turn over the key.
让不安全的老年驾驶员远离道路的一大挑战是说服他们认识到该把车钥匙交出来了。
We need better evidence on what makes drivers unsafe” and what can help, said Dugan.
杜甘表示：‘我们需要更确切的证据来了解哪些因素会使驾驶员变得不安全，以及哪些措施能够有所帮助。’
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。