丝瓜是一种雌雄异花同株的瓜类作物。
加拿大铁杉：一种松类雌雄同株的常绿树（加拿大铁杉） ，生长于从新斯科舍省到阿拉斯加的地区，其木料作为纸浆用木材、制革以及装饰物很有价值。
A coniferous evergreen monoecious tree (Tsuga canadensis) native from Nova Scotia to Alaska and valuable for its timber, as a pulpwood, for tanning, and as an ornamental.
但就在这个时候，温斯顿发现了脚下峭壁缝隙里有几株千屈草，其中一株有两种颜色，洋红色和砖红色，一看就知道是同根生的。
But at this moment Winston noticed some tufts of loosestrife growing in the cracks of the cliff beneath them. One tuft was of two colours, magenta and brick-red, apparently growing on the same root.
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