helicopter的现在完成时怎么写？

helicopter的一般过去时为：helicoptered...

helicopter的复数形式为：helicopters...

helicopter的现在进行时为：helicoptering...

n.直升机，直升飞机vt.用直升飞机载送vi.乘直升飞机...

helicopter的音标：helicopter的英式发音音标为：['helɪkɒptə(r)]helicopter的美式发音音标为：['helɪkɑptə(r)]...

helicopter的第三人称单数（三单）为：helicopters...

An RAF helicopter rescued the men after the boat began taking in water.在船开始进水后，一架英国皇家空军的直升机救起了那些船员。The helicopter hovered over the crowd for a while before inching away.直升机在人群上空盘旋了一会儿后慢慢飞走了.They were a helicopter to film...

A black Mercedes screeched to a halt beside the helicopter.一辆黑色的梅赛德斯轿车在直升机旁嘎的一声刹住了。She served six months in prison for the helicopter caper.她因为直升机一案坐了6个月牢。The silence was broken by the whirring of a helicopter.直升机的嗡嗡声打破了...

helicopter的近义词有：aeroplane, airplane, aircraft, plane, jet, helicopter。下面这些名词均有"飞机"的含义：aeroplane和airplane专指普通飞机，不包括helicopter(直升飞机)。aeroplane为英国英语的拼法。airplane ：为美国英语的用词。aircraft ：常用作集体名词，也可指一架飞机，其含义包括直升飞机和飞艇等。plane ：本义为"平...

dawning的音标：dawning的英式发音音标为：['dɔ:nɪŋ]dawning的美式发音音标为：['dɔnɪŋ]...

squeeze的音标：squeeze的英式发音音标为：[skwi:z]squeeze的美式发音音标为：[skwiz]...

preponderates的音标：...

We sat in the upper tier at the stadium.我们坐在体育场的上排.Each tier of cells is earmarked for a particular function.每层细胞都有明确的特殊功能标记.Heated air is forced into the upper tier of ducts.加热的气流被送入上面的一排管道....

absolutely的反义词有：relatively, relatively。adv.absolutely的反义词（绝对地;完全地）：relatively。absolutely的反义词（其他释义）：relatively。...

lot的近义词有：destiny, fate, lot, doom, luck, fortune。下面这些名词均有"命运，运气"的含义：destiny：普通用词，侧重预先注定的命运，对未来命运的美好憧憬。fate：较庄严用词，多指不幸的命运，暗示不可避免，令人畏惧和人的意志无法改变，宿命论色彩较浓。 lot：多指偶然的运气或终身遭受的不幸命运。doom：指最终的，常常是灾难性或毁灭性的命运，隐含不可避免的意味。luck：普通日常用词，指...

Nowadays NO PARKING is the most ubiquitous of prohibitions.今天,“NOPARKING”(禁止停车),几乎成了到处可见的禁止用语了.The outside observer sees the Rational as driven by compulsions or prohibitions.所以在外人看来,理性者是由强迫和禁令所驱动的....prohibitions agains...

Computing science was still in its infancy.计算科学仍然处于初期阶段。to die in infancy婴儿夭折He came to England in his infancy.他幼年时期来到英国....

v.（使）充满， （使）装满，填满( fill的第三人称单数 )，满足，配药，（按订单）供应...

He could earn up to £1m a year in salary and emoluments from many directorships.他每年的薪水加上担任许多董事职务的报酬高达一百万英镑。The emoluments of this profession is not satisfactory.此行业的报酬不令人满意.Emoluments connected with this position include...

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n.干枯，干皱...

...the educational problems of disadvantaged children...贫困儿童的教育问题I was disadvantaged by illness.我因病而处于不利地位.The centre aims to help disadvantaged areas of Europe, mainly by fostering new businesses.该中心旨在帮助欧洲的贫困地区，方法主要是通...

n.威吓者，胁迫者...

“别针”的英语可以翻译为：ooch，tack，safety pin，pin ...