如果你的体重超过170磅，要找更坚实的稳定型跑鞋。
If you weigh north of 170 pounds, look for firmer stability shoes, above.
园地在绿色的小山上，比这些年人们所见到的花了更大的力去设计，人们称它们是不稳定时期的坚实保护补丁。
Garden plots are dug into the green hills, laid out in fuller force than people have seen in years. People call them sturdy patches of protection in uncertain times.
他还表示，风力变化无常，稳定的煤矿厂可作为风力发电的坚实后盾。
Coal plants themselves, he says, can provide backup for fickle wind turbines.
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