gum的一般过去时怎么写？

gum的现在进行时为：gumming...

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...

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...

gum的第三人称单数（三单）为：gums...

adj.声音的，嗓音的，由嗓音发出或产生的，有声音的，能发出声音或语言的，畅所欲言的n.元音，[音乐]声乐作品...

resists的音标：...

“使麻醉”的英语可以翻译为：[医] anesthetize，narcotize ...

“款冬”的拼音为：kuǎn dōng...

“养成”的拼音为：yǎng chéng...

underscore的音标：underscore的英式发音音标为：[ˌʌndə'skɔ:(r)]underscore的美式发音音标为：[ˌʌndər'skɔ(r)]...

The major Merozoite Surface Protein 1 ( MSP 1 ) of falciparum is an important candidate for malaria vaccine.恶性疟原虫裂殖子表面蛋白1是当今疟疾疫苗主要的候选抗原.Malaria is still rampant in some swampy regions.疟疾在一些沼泽地区仍很猖獗.Next week, health mini...

sweet的复数形式为：sweets...

grave的现在进行时为：graving...

他在接受经验性的无环鸟苷治疗后, 多次血培养和脑脊液培养是阴性.He was treated empirically with acyclovir, and multiple blood and CSF cultures were negative.环二鸟苷酸系统是细菌纤维素生物合成中重要的调控体系.The Cyclic Diguanylic Acid Regulatory System is the important regulat...

“替班”的拼音为：tì bān...

cordoned的音标：...

earth的现在完成时为：earthed...

氯苯基...

lemons的音标：...