牛津词典公布2021年度词汇：Vax(11)

We continued tracking the plane on our radar.
我们继续用雷达追踪那架飞机。
电影《博物馆奇妙夜3》（Night at the Museum: Secret of the Tomb）中的台词提到：You"re sort of set up to track my phone? You track my phone? 你装定位追踪我的手机？你竟然追踪我的手机？

rollout
rollout作名词时，表示“首次提供（产品或服务）”，英文解释为“the act of making something, especially a product or service, available for the first time”举个：
Since its rollout in 2011, Wechat has gained billions of members.
自从2011年首次提供使用以来，微信已经吸引了数以亿计的用户。
2020年政府工作报告Part 12中就提到：We will support the rollout of e-commerce and express delivery services in rural areas to expand rural consumption. 支持电商、快递进农村，拓展农村消费。

roll out 动词短语，表示“推出（新产品或服务）”，英文解释为“If a company rolls out a new product or service, or if the product or service rolls out, it is made available to the public.”举个：