But progress towards this goal has stalled.

但是迈向这一目标的进程已经停止了。

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But this progress principle has a serious downside: Nothing makes people feel worse than being stalled in their work and this negative effect is much stronger.

但这种进展原则还有另外一面：没什么比工作停滞不前更让人感到沮丧的了，而且这种负面影响比正面的影响要大得多。

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Researchers in fusion energy have made significant advances, but progress has stalled because of budget cuts and annual funding fluctuations.

FORBES: A Challenge to America: Develop Fusion Power Within a Decade

But progress towards this goal has stalled.

ECONOMIST: A looming electricity crunch could trip up a new government

Mrs May told the committee e-borders currently screens over 65% of passenger movements into and out of the UK - but Keith Vaz and other critics say progress has stalled.

BBC: Crowd of shoppers