China refuses to lean on him except in direst times (such as after his 2006 bomb test).

中国拒绝对他施加压力，除非在最凶险的时刻(比如其在2006年的核试验之后)。

youdao

And the Saudis feel that if the Iranians did have a bomb, they would be the first to feel it, China -- one of the permanent members of the Security Council -- voted in favor of the sanctions.

VOA: standard.2010.06.29

China tested its first atomic bomb on 16 October 1964.

BBC: China to open atomic bomb site to tourists

In 1967, China exploded its first hydrogen bomb.

CNN: Wednesday,