每年这个时候，戈登•沃代尔都喜欢站在加利福尼亚圣华金山谷里杏仁树盛开的花丛中，聆听数百万只蜜蜂“低沉、温暖、愉快的哼鸣”。

AT THIS time of year Gordon Wardell loves to stand amid the almond blossoms in California’s San Joaquin valley, listening to the “low-pitch, warm, happy hum” of millions of bees.

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虽然扎根初期总是一鸣惊人，但很多巴尔沙树活不过三四十年。

But it's tough being an upstart, and many balsa trees don't live much past 30 or 40 years of age.

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