他说，三十年前，大规模的褪色事件极其罕见，但是近几年已经变得越来越平常。

Mass bleaching events were extremely rare 30 years ago but had become increasingly common in recent years, he said.

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第一个重要事件：慢跑三十分钟。

First milestone: Jog for thirty minutes.

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自从四月三十日以来的儿童药品召回事件，强生的股票已经下跌了5.8%，同期500强医药股指数下跌了4.4%。

The shares have lost 5.8 percent since the April 30 children’s medicine recall, compared with a decline of 4.4 percent in that period for the Standard & Poor’s 500 Pharmaceuticals Index.

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