Four recipients of the 'Fields Medal,' including two Chinese individuals, have been selected... This is the first time that someone from mainland China has received this Nobel Prize of mathematics.

Select a sentence or use the bottom play control. The current sentence is highlighted during playback, and you can move backward, forward, or seek to repeat it.

Turn translations or readings on in learning settings, and select unfamiliar words to view their meanings. Try understanding first, then reveal only the help you need.

Start with the displayed difficulty, then listen to or read a short section. If you understand the main idea with only a few lookups per sentence, it is usually suitable.