n.

1. 一片淺水；淺水處[C]
2. 淺灘；沙洲[C]
3. 【喻】暗礁，陷阱；潛在危險[P1]

vi.

1. 變淺
   He anchored where the river shoaled.

   他下錨泊在河道的淺水處。

vt.

1. 使變淺
2. 駛入（淺水等）

n.[C]

1. 魚群[G]
2. 大量，大群[（+of）]
   Emigration had carried to its shores shoals of men and women.

   移民使成群結隊的男男女女來到了它的海岸。

vi.

1. （魚等）成群，群集

n.

1. a large number of fish swimming together.
2. informal, chiefly Brit. a large number of people or things.

v.

n.

1. an area of shallow water.
2. a submerged sandbank visible at low water.

v.

adj.