World number three Judd Trump builds another high break during England's quarterfinal with Northern Ireland at the 2017 Little Swan World Cup in Wuxi, Jiangsu province on July 8. (Photo provided to China Daily)
"It was hard for us to win the match as our opponents were in good form," said Zhou. "In the deciding frame, Luca Brecel made a mistake and I seized the chance to secure the victory. I'm very satisfied with my performance today."
However, China B will need to raise their game even further if they are to overcome world number three Judd Trump's England team in their semifinal.
England were the highest scorers in the group stages, winning 22 of 25 frames, and for a while it looked like they would steamroller Northern Ireland in their quarterfinal after racing to a 3-0 lead.
The Northern Irish pair of Mark Allen and Joe Swail refused to give up, and a series of misses by Trump and Barry Hawkins allowed them to take the match to a deciding frame.
But Trump found his top form when it mattered most, winning the decisive final frame with an ice-cool 93 break.
"We threw away a few chances and got really twitchy toward the end, so obviously I'm glad that Judd made that frame-winning break at the end," said Hawkins.
After the match, Trump said that he remains confident about England's chances of winning the tournament.
"If we play our best then we're going to be tough to beat," he said.