A North American deciduous tree (Ulmus Americana) having double serrate leaves and winged fruits. It is grown chiefly as an ornamental shade tree but often dies from Dutch elm disease.
一种北美落叶树(美洲榆)，有双齿叶和双翼果，主要作为观赏性浓荫树，但常患荷兰榆树病而坏死。
His pronunciation was so bad and his voice was so low that his speech was double Dutch to me.
他的发音太差，声音又小，因此他的演说我根本听不懂。
We double Dutch dug the rose bed, burying three feet of pebble beneath three feet of perfectly aerated soil.
我们挖好玫瑰花坛，先铺三英尺深的石子，然后再铺三英尺厚的质地松软的土壤。
We double Dutch dug the rose bed, burying three feet of pebble beneath three feet of perfectly aerated soil.
我们挖好玫瑰花坛，先铺三英尺深的石子，然后再铺三英尺厚的质地松软的土壤。
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