If you dip something in a liquid, you put it into the liquid for a short time, so that only part of it is covered, and take it out again.
Dip each apple in the syrup until thickly coated.
把每个苹果在糖浆里蘸一下，直到被厚厚地裹上糖浆。
He dipped the brush into the paint.
Dip your hand in to see how hot the water is.
The fruit had been dipped in chocolate.
to go downwards or to a lower level; to make sth do this （使）下降，下沉 SYN fall
(+ adv./prep.)
The sun dipped below the horizon.
太阳落到地平线下了。
Sales for this quarter have dipped from 38.7 million to 33 million.
本季度销售额从 3 870 万下降到 3 300 万。
The road dipped suddenly as we approached the town.
我们向镇里驶近时道路陡然下斜。
~ sth (+ adv./prep.)
The plane dipped its wings.
机翼向下倾斜。