at the heads of 是什么意思

at the heads of 是什么意思 join together at the side of heads The board of directors ___shaking heads at the chairman's speech. 填is 还是are?为什么？ 数学题,What is the probability of getting at least three heads when flipping four coins?过程 谢谢. heads of cabbage是什么意思?heads of呢? the heads of中的head为什么要加s The Egyptians always ( ) a kind of scarf on their heads. the Egyptians are putting akind of scarf on their heads The E__are wearing a kind of skarf on their heads. 英语翻译WOW!What could anyone say about having their work looked at by four fine eyes in the heads of two very capable human researchers?完全不能理解. heads of spinach 英语翻译number of heads What must it not be doing通常以这句话开头的句子是什么意思呢?是什么用法啊If the oil is killing the life along the coral heads,what must it not be doing to the plankton at sea which provide 70% of the oxygen we breathe?就这句 英语翻译：which means pulling the heads through a row of nails with their heads filed to points. 英语翻译This arises from the possibility of debris being retained in certain locations due to debris coagulation or restricted access of wash solution.For this reason it is imperative on the introduction of new cylinder blocks/heads,and at regula the board of谓语动词用什么书上说用动词单数 可是下面这句话为什么用are?The board of directors are shaking heads at the chairman’s speech. heads-of-house是什么意思?原文为：Data for the test were gathered from 506 interviews with female heads-of-house living in the trading area of metropolitan Oakland. 名词所有格,_____are grazing in the fields.A.ten heads of cattleB.ten head of cattleC.ten heads of cattlesD.ten head of cattles为什么?