dahlias造句

Dahlias are florescent from July.
天竺牡丹七月起开花.

The dahlias died back when the frosts came.
大丽花霜打后暂时枯萎.

At what stage of development should we cut roses, gladioluses, and dahlias?
知道对于玫瑰 、 剑兰及天竺牡丹,我们应在甚麽阶段剪下来用.

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