Dr Bottke has been tracking the orbits of asteroids.

伯克(Bottke)博士一直在追踪小行星的运行轨迹。

youdao

Mancini has been tracking the versatile left sided player for some time.

曼奇尼一直在跟踪这样的左边路全能球员。

youdao

According to the Shenzhen border revealed through intelligence research, has been tracking the "snake-heads" for several days.

据深圳边检透露，他们通过情报调研，已跟踪该名“蛇头”多日。

youdao

An International Crisis Group Somalia analyst,Rashid Abdi, says the United States has most probably been tracking the suspect for awhile.

VOA: standard.2009.09.15

There's also another source that has been tracking the performance of the Zweig method.

FORBES: Making Hay With Marty Zweig

Jonathan Spira, chief analyst at research firm Basex , has been tracking the information overload phenomenon for years.

FORBES: Information Overload Makes Us Dazed and Confused

Michael O'Hanlon is a senior fellow at the Brookings Institution who has been tracking the state of the Iraq War since it began.

NPR: Bush Accentuates the Positive in War Speeches