The President has appealed to his European partners to stand firm on the issue.总统已经呼吁其欧洲伙伴在此问题上站稳立场。The President has appealed to his European partners to stand firm on the issue.总统已经向其欧洲伙伴呼吁，请他们在此问题上站稳立场。He told supporters to stand fast over the next few vital days.他叫支持者在接下来的几个重要日子里站稳立场。