样式规则确保首个子元素充满容器并保持宽高一致，同时去除底部边距并继承圆角属性。
Why the FT?See why over a million readers pay to read the Financial Times.，更多细节参见有道翻译
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Moyo’s advice to business leaders: “You need to start to think, ‘well, maybe we can pay a little bit more in terms of royalties or on electricity bills.’ Think about retooling, reskilling, taking on a little bit more of those costs and thereby becoming more of a partner if you want to protect your license to trade.”