为首的英文：
head
leading

They were organized as the Confederate States of America under Jefferson Davis.
他们组成以戴维斯为首的美利坚邦联

The anti-imperialist camp headed by the Soviet Union has already been formed
以苏联为首

An administration captained By Mr. Taylor
以泰勒先生为首的内阁

a is used before a word beginning with a consonant sound.
在发子音为首的单字前用a。

David Duncan headed petitioner′s "engagement team" for Enron.
上诉人的安然“审计工作小组”以戴维·邓肯为首。

Let the leading hound lose the scent, then another shall give tongue.
只要为首的一条猎犬失去嗅觉，另外一条就会叫起来。

The ringleaders were arrested and charged with mutiny.
为首的人遭到逮捕并以叛乱罪被起诉。

The airline remains grounded, unable to secure airspace permission from the U.S.-led coalition.
然而，到目前为止，航班仍未起飞，它还没有获得以美国为首的联军批准的空中许可权。

That is very annoying,' said the brigadier; for the man we are looking for is the chief.'
‘真讨厌，’为首的那个队长说，‘我们所找的那个人是个强盗头儿。’

The guqin headed the list of four subjects scholars trained themselves in along with chess, calligraphy and painting.
故文人修养中的"琴、棋、书、画"四艺，列其为首。

Heads will roll

a head of a gang; a ringleader; a chieftain; the head of a group; a cock
头目

They hit their heads together when heading the ball.
争顶头球时，二人的头撞在了一起。

My head is not that clear.
我的头脑不怎么清醒。

Tom headed the ball into the goal.
汤姆把球顶进了自己的球门。

Will you take the lead?
你领个头好吗？

Lead poisoning( or plumbism )：Poisoning by accumulation of lead in the body.
铅中毒:铅在体内积累引起的中毒。

The road leads direct there.
这条路直接通那儿。

The dog is straining at its lead.
那条狗正使劲地拖拽皮带。

Put the dog on the lead!
用皮带牵住狗！