Her heart began to thump and she felt herself changing into a stiff, plain, silent child again.

她的心开始怦怦地跳，她觉得自己又变成了一个相貌平平、拘谨、沉默寡言的孩子。

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Stiff blood vessels make your heart work harder. This low-tech test may help you prevent a heart attack.

血管硬化会使心脏工作更困难。这种低科技测试有可能帮助你预防心脏病发作。

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He also rebelled against King Nebuchadnezzar, who had made him take an oath in God's name. He became stiff-necked and hardened his heart and would not turn to the Lord, the God of Israel.

尼布甲尼撒曾使他指着神起誓，他却背叛，强项硬心，不归服耶和华以色列的神。

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The researchers found a "progressive rise" in both heart-related risk factors and stiff arteries as the triglyceride-to-HDL ratio increased.

WSJ: Heart-Attack Risk Starts Younger