英语语法分析

Mars has an insubstantial atmosphere, consisting almost entirely of carbon dioxide.

火星周围有一个薄薄的大气层，几乎全由二氧化碳构成。

《柯林斯英汉双解大词典》

After this, a man is as insubstantial as a cloud.

之后，男人就是浮云了。

Obama brushes aside the notion that his rhetoric is insubstantial.

奥巴马不理会那些认为他言辞空洞的见解。