helicopter的现在完成时怎么写？

helicopter的第三人称单数（三单）为：helicopters...

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的一般过去时为：helicoptered...

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...

helicopter的现在进行时为：helicoptering...

helicopter的复数形式为：helicopters...

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...

n.直升机，直升飞机vt.用直升飞机载送vi.乘直升飞机...

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...

force out的音标：force out的英式发音音标为：[fɔ:s aut]force out的美式发音音标为：[fɔrs aʊt]...

The village looked delusively near.那个村庄看起来很近,实际上却很远....

tag的复数形式为：tags...

“领队”的英语可以翻译为：lead a group，the leader of a group, sports team, etc. ...

however的音标：however的英式发音音标为：[haʊ'evə(r)]however的美式发音音标为：[haʊ'evɚ]...

cycinchophen的音标：cycinchophen的英式发音音标为：[si:'sɪntʃəfen]cycinchophen的美式发音音标为：[si'sɪntʃəfen]...

n.钾蓝矾...

acrodomatia的音标：acrodomatia的英式发音音标为：[ækrədəʊ'meɪʃɪə]acrodomatia的美式发音音标为：[ækrədoʊ'meɪʃɪr]...

“幌子”的拼音为：huǎng zi ...

haphazardly的音标：haphazardly的英式发音音标为：[hæp'hæzədlɪ]haphazardly的美式发音音标为：[ˌhæp'hæzɚdlɪ]...

canniest的音标：...

stylish的最高级为：most stylish...

“贫瘠的”的英语可以翻译为：arren，infertile，poor，sterile，arid ...

speak out的音标：speak out的英式发音音标为：[spi:k aut]speak out的美式发音音标为：[spik aʊt]...