It isn't their diplomatic style to commit themselves on such a delicate issue.

就如此微妙的问题表态不是他们的外交风格。

《柯林斯英汉双解大词典》

But they refused to commit themselves to a figure on helping developing nations battle climate change, saying they would wait to see what other countries offered first.

VOA: standard.2009.03.20

The union is calling on universities to commit themselves to a system based on "equality, not elitism".

BBC: Students want ban on 'top-up fees'

As expected, the G8's guests from the developing world did not commit themselves to any target on carbon.

ECONOMIST: The G8 and climate change