gum的现在进行时怎么写？

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 ...

gum的一般过去时为：gummed...

gum的第三人称单数（三单）为：gums...

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

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

gum的现在完成时为：gummed...

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...

“逼真”的拼音为：bī zhēn...

squandered的音标：...

int.举杯敬酒的用语，谢谢，再见v.喝彩（ cheer的第三人称单数 ），鼓励，鼓舞...

说明,小鼠股骨的最适保存条件为室温干燥.Storage condition of the irradiated femora samples was studied.目的: 测试微波辐射下犬股骨的生物力学性能,分析微波对股骨强度的影响.Objective : To investigate the effects of microwave induced hyperthermia on and biomechanics of canine...

revenue的反义词有：expenditure。n.revenue的反义词（收入,收益）：expenditure。...

“杰克”的英语可以翻译为：jack ...

disquisitions的音标：...

“卷柏”的英语可以翻译为：Selaginella tamariscina...

I have been scrupulous about telling them the dangers.我已经本着良心将危险告知他们。Poets are not so scrupulous as you are.诗人并不像你那样顾虑多。She is scrupulous to a degree.她非常谨慎。scrupulous attention to detail一丝不苟a scrupulous businessman正直的商人a...

antiquity的复数形式为：antiquities...

n.酒精测定计...

“装拉线”的拼音为：zhuāng lā xiàn...

reads的音标：...

The first of May is International Labour Day.五月一日是国际劳动节.Oh, today's International Labour Day.噢, 今天是国际劳动节.The people are celebrating Labour Day. They are singing and dancing.人们正庆祝劳动节. 他们正唱歌和跳舞....

n.小集团，小圈子，派系vi.结派，结党...