crown|crowned|crowning

这棵树的树冠很大。

The tree has a large ___crown.

这座山被白雪覆盖，顶峰宛如被戴上了一顶王冠。

The mountain is ___crowned with snow at its peak.

新建的观景台将成为这座城市的点睛之笔。

The newly built observation deck will be the ___crowning point of the city.