vt.

1. 不断使用；不断给；不断问；不断做
2. 定期往返于

vi.

1. 不断地工作
2. 定期往返
3. （搬运工等）等候顾客

n.

1. 一层；一股
2. 胶合板
3. 倾向；癖好

vt.

1. 将……胶合
2. 弯曲

n.

1. a thickness or layer of a folded or laminated material.
2. each of a number of multiple layers or strands of which something is made: [in combination]
   four-ply.

v.

1. work steadily with (a tool).
   ▸work steadily at (one's business or trade).
2. (of a vessel or vehicle) travel regularly over a route, typically for commercial purposes.
3. (ply someone with) provide someone with (food or drink) in a continuous or insistent way.
   ▸direct (numerous questions) at someone.