adj.尖端細的；漸漸減少的
動詞taper的現(xiàn)在分詞形式.
Parrots, usually having long tapering tails, are often kept as pets. 鸚鵡通常長有錐形尾巴，常被作為寵物飼養(yǎng)。
The number of applicants for the course has been tapering off recently. 申請上該課程的人近來已逐漸減少。
