gum的一般过去时怎么写？

gum的音标：gum的英式发音音标为：[gʌm]gum的美式发音音标为：[ɡʌm]...

gum的现在完成时为：gummed...

gum的现在进行时为：gumming...

gum的第三人称单数（三单）为：gums...

n.口香糖，树胶，黏胶，牙龈vt.& vi.胶合，涂以树胶，使…有粘性...

When not removed, plaque causes tooth decay and gum disease.牙斑如果不清除就会导致牙齿蛀蚀和牙龈疾病。I've tried everything from herbal cigarettes to chewing gum.中草药香烟、口香糖之类的我统统都试过了。Deposits of plaque build up between the tooth and the ...

Spit out that gum and pay attention.把那块口香糖吐出来，注意听。Extraction Method Galbanum gum is collected incisions on the roots of the plant.白松香胶采集于其植株的根部.The gum was three reals.这口香糖是三雷亚尔.Kookaburra sits on an old gum tree.翠鸟坐在一棵老...

“部”的英语可以翻译为：part，section，unit，ministry[书] （统辖； 统率） command，board ...

depasture的音标：depasture的英式发音音标为：[dɪ'pɑ:stʃə]depasture的美式发音音标为：[dɪ'pɑstʃə]...

level的第三人称单数（三单）为：levels...

kanedomycin的音标：kanedomycin的英式发音音标为：['keɪndəmi:sɪn]kanedomycin的美式发音音标为：['keɪndəmisɪn]...

He is interested in the cultivation of trout in ponds.他喜欢在池中养鲤鱼....small ponds for the birds to bathe in.可供禽鸟嬉戏的小池塘Shrimp are raised in long uniform ponds, frozen in the nearby packing plant and shipped north.虾放养在清一色的长池子...

n.女售货员...

关节肿胀...

Mr Palmer was a retired maths master.帕尔默先生是一名退休的数学教师。Palmer kept hammering away at his report.帕尔默一直在埋头写报告。Palmer gave a sad shake of his head.帕尔默难过地摇了摇头。...

n.（尤指空军的）机组人员，空勤人员，空勤组( aircrew的名词复数 )...

目的建立毛细管气相色谱法测定薄荷脑醑中薄荷脑的含量.Objective To a method for determination of mentholatum in menthol spirit.水杨酸甲酯、薄荷脑、松节油 、 桉叶油、丁香油、肉桂油 、 麝香草酚 、 樟脑.Oleum OleumOleum Caryophylli , Oleum Cinnamomi, Mentholum , Camphorum , methyl sa...

“筏夫”的英语可以翻译为：after ...

n.福神...

“划分”的反义词：合并。...

“担负”的反义词：推卸。...

v.（使）稍微移动( budge的现在分词 )，（使）改变主意，（使）让步...