tern是什么意思音标:英 [tɜ:n]美 [tɚn]

n. 三个一组, 燕鸥

n. small slender gull having narrow wings and a forked tail

tern的用法和例句：

1.The most successful travellers were the longhaul fpers sooty terns.

最成功的旅行者是这种长途飞行家 乌燕鸥

2.For instance, I heard cicadas, and I heard terns, but the real giveaway was the church bells.

比如说 我听到了蝉鸣 听到了燕鸥 但真正暴露她的是教堂的钟声

3.With food so hard to come by in the open ocean, newlyhatched sooty tern chicks are easy pickings for the larger frigate birds.

远洋海域食物稀缺 刚孵出的乌燕鸥幼雏就成了体型更大的军舰鸟 容易下手的目标

4.For two weeks, the frigate birds keep up their relentless aerial assault until finally the sooty tern chicks are old enough to get away.

两周以来 军舰鸟持续发动无情的空袭 直到乌燕鸥雏鸟长大 可以自行逃脱