例句
The insects have hard integuments to protect their bodies.
昆虫有坚硬的体壁来保护它们的身体。
The integument of this plant is very smooth.
这种植物的外皮非常光滑。
The insects have hard integuments to protect their bodies.
昆虫有坚硬的体壁来保护它们的身体。
The integument of this plant is very smooth.
这种植物的外皮非常光滑。