insubstantiality

n. 无实质(不坚固)

例句与用法：

Something unreal, insubstantial, or imaginary.

幻想不真实，不实在，或被想象出来的某个事物

Early aircraft were insubstantial constructions of wood and glue.

早期的飞行器是木头和胶粘合的脆弱机器。

词形变化：

名词: insubstantiality |