helmet的复数形式怎么拼写？

A man in a crash helmet was mounting a motorbike.一位戴头盔的男子正跨上摩托车。He pulled on a battered old crash helmet with a scratched visor.他戴上了一顶破旧的防护头盔，上面的面罩已有划痕。Miners wore a helmet as a guard against falling rocks.矿工头戴钢盔,防护落下的岩石...

The welder took off his helmet, disclosing a sweating face.焊工取下了护面罩, 露出一张流着汗水的脸.The plaintiff was guilty of contributory negligence for failing to wear a crash helmet.原告因未戴安全头盔而负有连带责任。Atop Athena's helmet, between w...

n.头盔，钢盔，盔形物，盔状物，[植]盔状花冠vt.给…戴上头盔...

helmet的音标：helmet的英式发音音标为：['helmɪt]helmet的美式发音音标为：['hɛlmɪt]...

n.假设的事情，假定，预设( presupposition的名词复数 )...

n.蒙头斗篷，连有头巾的修道士服，（烟囱顶上的）通风帽...

n.板铅铀矿...

aleukocytosis的音标：aleukocytosis的英式发音音标为：[əlu:kə'sɪtəʊsɪs]aleukocytosis的美式发音音标为：[əlukə'sɪtoʊsɪs]...

physical的复数形式为：physicals...

v.（未婚者）同居( cohabit的现在分词 )...

n.硅铍钠石...

n.河马( hippo的名词复数 )...

steeply的音标：steeply的英式发音音标为：[sti:plɪ]steeply的美式发音音标为：['stɪplɪ]...

Objective To investigate the importance of cerebrospinal fluid ( CSF ) examinations in diagnosing meningeal carcinomatosis.目的探讨脑脊液检查对诊断脑膜 癌 病的重要意义.How long does the life after art of rectum carcinomatosis person have?直肠癌...

jamming的音标：jamming的英式发音音标为：['dʒæmɪŋ]jamming的美式发音音标为：['dʒæmɪŋ]...

他用微型声波发射器开启了门。He activated the door with the miniature sonic transmitter.他最喜欢的还是那个俄制的火箭发射器,它可载40枚三米的火箭.His favourite gadget is a Russian - made rocket launcher which holds 40 three metre - long missilles.沉淀使灌溉系统中的发射器发生被阻...

The Kabala is an ancient Hebrew mystical system of thought.卡巴拉是古代希伯来人神秘思想系统.The Old Testament was written in Hebrew, with a sprinkling of Aramaic.旧约是用希伯来文写的, 也有星点亚兰文的笔墨.The story has points of resemblance to a Hebrew myt...

v.进行，抽空...

Your hair’s so tangled that I can’t comb it.你的头发太乱了,我梳不动。These models remorselessly comb the markets for arbitrage opportunities.这些模型无情地扫荡市场的套利机会.She bent to retrieve her comb from the floor.她弯腰从地上捡起她的梳子。Your hair needs ...