I was within 15 seconds of the guy in second place and closingon him.
我当时和第2名相距15秒,而且逐步向他接近。
《柯林斯英汉双解大词典》
2
At the heart of galaxy NGC 6240 astronomers found not one but two black holes, roughly 3, 000 light-years apart and closingon an apparent merger course.
Straws in the wind had suggested that he was closingon the media billionaire in the final week of campaigning, yet the media tycoon's jocular complacency was a better guide.