A slender person is attractively thin and graceful.
She was slender, with delicate wrists and ankles.
她身材苗条,有纤细的手腕和脚踝。
a tall, slender figure in a straw hat.
一个戴草帽的高挑的形象。
You can use slender to describe a situation which exists but only to a very small degree.
The United States held a slender lead.
美国以微弱的优势领先。