Dai Li had suggested that Yue Zhao could be specialized in the 200m sprint. After hearing Dai Li's suggestion, Li Xue fell silent immediately. Dai Li knew Li Xue was taking his suggestion seriously.
Sprinters who specialized in the 200m sprint were rare, both in the country and abroad. Most sprinters specialized in the 100m sprint, and considered the 200m sprint irrelevant.
Of course, the 200m sprint is far less influential than the 100m sprint. The world record holder in the 100m sprint was considered the "fastest person alive," but there was no such title for the champion of the 200m sprint.
The 200m sprint was also a lot less frequent in the Grand Prix, the Super Grand Prix, and the Diamond League held by the IAAF. According to the IAAF rules, among similar events, only one event could be held during the games.