Chinese acrobats perform acrobatics Diabolo "Beauty and Liveliness" during the China-South Africa Hand in Hand Gala in Pretoria, South Africa, April 25, 2017. The gala was co-held by the two countries on Tuesday to celebrate the launch of the China-South Africa High-Level People-to-People Exchange Mechanism on Monday and the South African National Day, or Freedom Day, which falls on April 27. [Photo/Xinhua]