名詞 warble:

1. a lumpy abscess under the hide of domestic mammals caused by larvae of a botfly or warble fly

動詞 warble:

1. sing or play with trills, alternating with the half note above or below
   同義詞：trill, quaver
2. sing by changing register; sing by yodeling
   同義詞：yodel, descant

1. A blackbird was warbling from the branch.
   一只畫眉鳥在枝頭歌唱。
2. It's a pleasure to hear birds' warble in spring.
   在春天里聽鳥兒歌唱是一種樂趣。

warble

v.（動詞）
war.bled,war.bling,war.bles
v.tr.Music （及物動詞）【音樂】
To sing (a note or song, for example) with trills, runs, or other melodic embellishments.
用柔和的顫音唱歌：用顫音、連續(xù)音或其他悅耳的裝飾音唱（如一支調子或歌曲）
v.intr.（不及物動詞）
Music To sing with trills, runs, or quavers.
【音樂】 用顫音、連續(xù)音等唱
To be sounded in a trilling or quavering manner.
用震顫的方式發(fā)音
n.Music （名詞）【音樂】
The act or an instance of singing with trills, runs, or quavers.
顫聲歌唱：用顫音、連續(xù)音等歌唱的行為或事例

來源：
Middle English werbelen
中古英語 werbelen
from Old North French werbler
源自 古法國北方方言 werbler
[of Germanic origin]
[出于德語語源]

warble
warble 2

n.（名詞）

An abscessed boillike swelling on the back of cattle, deer, and certain other animals, caused by the larva of a warble fly.
動物背上的腫塊：由一種牛皮下蠅幼蟲引起的牛、鹿或其他某些特定動物的背上的膿腫
The warble fly, especially in its larval stage.
皮瘤蠅、皮瘤蠅幼蟲：皮瘤蠅，尤指尚處于幼蟲階段的
A hard lump of tissue on a riding horse`s back caused by rubbing of the saddle.
馬背上的硬瘤：由于馬鞍摩擦引起的供騎乘的馬的背部生出的硬瘤組織

來源：
[Probably of Scandinavian origin] ; akin to obsolete Swedish varbulde
[可能源于斯堪的那維亞語] ；類似于 已廢瑞典語 varbulde