enlarge、extend、expand，三者的用法区别是什么？ - 知乎 Expand - give more details about sth (enlarge on can be used this way too but expand on is much more common) You can expand on some of your points to extend your essay
shrink与contract意为收缩时有什么区别，二者中哪一个是expand的反义词? - 知乎 例如： Objects will expand when they are heated and contracted when they are cooled 物体受热膨胀，受冷则收缩。 Muscles can expand or contract as we are doing exercises 我们运动时肌肉会伸胀或收缩。 When it is frightened, a hedgehog will contract its body into a ball 刺猬受惊时, 身体会缩成一个球。