knapsack的复数形式怎么拼写？

n.（士兵或旅行者的）背包...

" You can carry that blue knapsack. I'll take the tan one and the tripod. "“ 你可以帮着拿那个蓝背包, 我拿那个土黄色的和三脚架. ”Franklin placed the warm scarf Debbie had knitted for him in the top of his knapsack.富兰克林把黛比为他织的暖和的围巾放在背包的最上层....

knapsack的音标：knapsack的英式发音音标为：['næpsæk]knapsack的美式发音音标为：['næpˌsæk]...

shameful的近义词/同义词有：humiliating, disgraceful, deplorable, scandalous, pitiful, outrageous, dishonorable, scandalous, disgraceful, discreditable, ignoble, pitiful, black, infamous, deplorable, humiliating。adj.shameful的近义词（可...

他重新树立自己地位的机会因教练的战术而流产了。His opportunity to re-establish himself had been nobbled by the manager's tactics.我在大约第16至18孕周时又经历了一次自然流产。I had another spontaneous miscarriage at around the 16th to 18th week.他的女朋友做了流产。His gi...

v.进行（go的第三人称单数），去，离开，进展n.（牌戏、下棋等中）轮到的顺序（go的复数形式）...

fibrolaminar的音标：fibrolaminar的英式发音音标为：[fɪbrəʊ'læmɪnə]fibrolaminar的美式发音音标为：[fɪbroʊ'læmɪnə]...

教练试图激发队员的积极性。The coach tried to get his charges motivated.和我共事的人大多积极性极高。I am working with mostly highly motivated people.失败会挫伤学生的积极性。Failure can demotivate students....

correlation的复数形式为：correlations...

Occasionally they paid for their indiscretion with their lives.有时候他们因自己的轻率而搭上性命。He talked to the press in a moment of indiscretion.他一时冲动对新闻界发表了讲话。He had committed a minor sexual indiscretion.他在性方面曾有一次不太检点....

There are about 750,000 species of named insects and 85 % of these are holometabolous.已定名的昆虫约有750,000种,其中85%的昆虫都是完全变态的.Metamorphosis of an insect may be ametabolous hemimetabolous, or holometabolous. Neuroendocrine and e...

Flora的复数形式为：floras...

aviations的音标：...

cut sth down的音标：...

heteroecism的音标：heteroecism的英式发音音标为：[ˌhetə'ri:sɪzəm]heteroecism的美式发音音标为：[ˌhetə'risɪzəm]...

diffuse的音标：diffuse的英式发音音标为：[dɪ'fju:s]diffuse的美式发音音标为：[dɪ'fjuz]...

“职工”的拼音为：zhí gōng...

East Prussian was an exclave of Germany.东普鲁士原先是德国的飞地....