/skwi:l; skwil/
n high-pitched cry or sound, longer and louder than a squeak (often indicating terror or pain) 长而尖的叫声或响声（常因惊恐或痛苦所致）
*the squeal of brakes, eg on lorries 刹车发出的嘎的一声
* There were squeals of excitement from the children. 孩子们兴奋得大声尖叫.

v
1 [I] make a squeal 发出长而尖的声音
*The pigs were squealing. 猪在尖叫.
* He squealed like a pig. 他像猪似的号叫着.
2 [Tn, Tn.p] ~ sth (out)say sth in a squealing voice 尖声地说; 号叫着说
*He squealed the words out. 他吼叫着说出那些话.
3 [I, Ipr] ~ (on sb) (to sb) (sl 俚) give secret information (esp to the police about a partner or accomplice in crime); become an informer 告密（尤指向警方告发同伙或同谋）; 充当告密者
*He squealed on his friends. 他把朋友给告了. squealer n
1 animal that squeals 尖声号叫的动物.
2 (sl 俚) informer 告密者.