dip in; dip into; dip out; dive in; dive into

dip * in/into
把 (某物) 在某液體中浸一下；從…中掏出，從…中取出
He dipped the brush in the paint and began painting the wall. (他把刷子放入油漆中浸一下後開始粉刷牆壁)
Monica dipped her finger in the water to see if it’s hot. (莫妮卡把手指浸入水中，看水熱不熱)
I dipped my hand in my pocket and took out my iPhone. (我伸手從口袋裡掏出 iPhone 手機)

dip into +
I usually dip into a novel before deciding whether to read it. (我在決定看一本小說之前，通常會先瀏覽一下)