It expands background investigations into the youngest gun buyers and red flag laws.

它将背景调查的范围扩大到最年轻的枪支购买者，并扩大了红旗法案的适用范围。

Racing young gun Zhou Guanyu has made motor racing history after being named China's first Formula One driver.

年轻赛车手周冠宇被评为中国第一位 F1 赛车手，创造了赛车运动的历史。