n.

1. 松树[C]
2. 松木[U]
3. 【口】凤梨，菠萝[C]

vi.

1. 消瘦，衰弱，憔悴[（+away）]
   The bereaved mother was pining away with grief.

   那位失去孩子的母亲因悲伤而日渐憔悴。

2. 痛苦，悲哀[（+for）]
3. 渴望[（+for/after）][+to-v]
   The girl pined to return home.

   那少女渴望回家。

   The little girl was pining for her mother's return.

   小女孩渴望母亲回来。

n.

1. (also pine tree) an evergreen coniferous tree having clusters of long needle-shaped leaves, grown for its soft wood or for tar and turpentine. [Genus Pinus: many species.]
   ▸used in names of coniferous trees of other families, e.g. Chile pine.
2. used in names of unrelated plants that resemble the pines in some way, e.g. screw pine.

v.