Clarke didn't mention that his system might also track another person, such as a criminal.

克拉克没有提到他的系统可以跟踪另外一个人，比如一个罪犯。

Forecasters are tracking another tropical system in the Caribbean. It could bring heavy new rain to the Bahamas by tomorrow.

天气预报认为在加勒比海跟踪了另一个热带系统。明天巴哈马或迎来新一轮强降雨。

(Applause) We've built technology that can predict oxygen demand, and we use blockchain to track our blood system.

（掌声）我们已经建立了可以预测需氧量的技术，并且我们使用区块链来跟踪我们的血液系统。

SEAN RANDICH, CBP AGENT: Yeah, David, so when we do detect a target, I hook it so the system is now tracking it.

没错，大卫，当我们探测到一个目标时，我就标记目标，这样系统就能跟踪它了。

The four new 9RX tractor models, which range from 470-620 engine horsepower from John Deere, feature a big undercarriage and track system designed to give higher power, durability, and improved riding quality, especially while handling large implements in the field.

约翰迪尔的四款新型 9RX 拖拉机型号的发动机马力范围为 470-620 马力，具有大型底盘系统和履带系统，旨在提供更高的动力、耐用性和改善的行驶质量，特别是在野外搬运大型机具时。