burr

n.

带刺的种子；磨石；呼呼声；讲话时的r音

vi.

发出嗡嗡声，粗声粗气地说话；发颤动小舌（或舌尖）的r音；

vt.

以粗喉音发出；从…除去芒刺；在…上形成毛边；

复数：burrs

1. She speaks with a soft rural burr.
   她说话带著乡下人的轻柔的r音。
2. A burr should not form too easily, or be too large.
   卷边毛刺不应很容易形成，也不应太大。
3. The winter's forst must rend the burr of the nut before the fruit is seen.
   只有冬天的寒霜撕碎了坚果的芒刺，才能看到果实。

1. The phones in Europe don't seem to ring; they burr.
   在欧洲听筒似乎发不出清脆响亮的声音，它们发音粗浊不清。

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