啤酒中还富含植物性雌激素，这类植物型的雌激素有助于保持骨骼健康。
Beer is also rich in phytoestrogens, plant versions of oestrogen, which keep bones healthy.
它们均是冬季种植的球根植物，有春花型和秋花型两个主要类型。
They are all winter growers. There are both autumn and spring flowering species.
主要有三个种类的一年生植物：耐寒型，半耐寒型和柔嫩型。
There are three main types of annual flowers, hardy, half-hardy and tender.
主要有三个种类的一年生植物：耐寒型，半耐寒型和柔嫩型。
There are three main types of annual flowers, hardy, half-hardy and tender.
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