ensure的现在完成时怎么写

The drill should be slowly rotated to ensure a clean hole.钻头必须缓慢转动，以保证钻孔平整光滑。Goldsmith has repaired the roof to ensure the house is wind-proof.戈德史密斯修理了屋顶，以确保房屋能够抗风。Ensure that the frame is securely fixed to the ground wi...

vt.确保，担保获得[避免]，使（某人）获得，使安全...

ensure的近义词/同义词有：cover, defend, protect, shelter, guard, shield, screen, make, guarantee, certain, assure, shield, guard, shelter, screen, certain, guarantee, assure, defend, protect, cover, make。vt.ensure的近义词（保护）：cover, ...

ensure的一般过去时为：ensured...

To ensure operation of transmission line safely, the arcing gap of insulator was developed and install.为保证线路安全运行, 研制安装了保护绝缘子串的引弧间隙,并先后在锚塔和高塔上安装了避雷器.Lay them on their side and ensure the airway is unobstructed.让他们侧躺着,并确保呼...

ensure的现在进行时为：ensuring...

ensure的近义词有：ensure, insure, assure, guarantee, pledge, promise。下面这些动词都有"保证"的含义：ensure：侧重使人相信某个行为或力量产生的结果。insure常与ensure换用，但前者多指经济方面的保证、保险。assure：侧重指消除某人思想上的怀疑或担心，从而有达到目的的保证感，但不如ensure普通。guarantee：指对事物的品质或人的行为及履行义务、义务等承担责...

ensure的音标：ensure的英式发音音标为：[ɪn'ʃʊə(r)]ensure的美式发音音标为：[ɛn'ʃʊr]...

ensure的第三人称单数（三单）为：ensures...

His disappearance overshadowed the family.他的失踪给家庭蒙上了一层阴影。Those concerns were overshadowed by subsequent events.随后发生的事使之前所关注的那些问题显得无足轻重。Mary was sometimes overshadowed by the more talkative members of the family.有时家中更健谈的人...

major general的音标：major general的英式发音音标为：['meidʒə 'dʒenərəl]major general的美式发音音标为：['medʒɚ 'dʒɛnərəl]...

在楼舍范围内 ( 包括天台,后楼梯 ) 不准吸烟或吸毒.Smoking and drugs are prohibited within the Hall area ( including the Roof and the Staircases )....

n.（尤指未满周岁的）小野兔...

nick的音标：nick的英式发音音标为：[nɪk]nick的美式发音音标为：[nɪk]...

意大利的经济奇迹一直是个谜。The Italian economic miracle has always been a mystery.生命起源的确切详情仍是个谜。The precise details of the origins of life remain hidden.她是个谜。She was a puzzle....

applewife的音标：applewife的英式发音音标为：['æplwaɪf]applewife的美式发音音标为：['æplwaɪf]...

He was regularly pilloried by the press for his radical ideas.他因观点极端而经常受到新闻界的抨击。He was pilloried, but she escaped without blemish.他受到公众的批评, 她却名声未损地得以逃脱.The education secretary was pilloried in the press for his ridiculou...

brood的第三人称单数（三单）为：broods...

abri的音标：abri的英式发音音标为：[ə'brɪ]abri的美式发音音标为：[ə'brɪ]...

depose的近义词/同义词有：defrock, impeach, unseat, remove, or, dismiss, declass, dethrone, overthrow, eject, disenthrone, from, degrade, unfrock, office, oust, disrate, kick, uncrown, out, cashier, to, testimony, sworn, swear, at...

blown的音标：blown的英式发音音标为：[bləʊn]blown的美式发音音标为：[bloʊn]...

grubber的音标：grubber的英式发音音标为：['grʌbə(r)]grubber的美式发音音标为：[]...

She waited tensely for the next bulletin.她焦虑地等候着下一期公告。"Tony, I can explain everything," she said tensely.“托尼，这一切我都可以解释，”她紧张地说。Her fingers tensely twisted the handle of her bag.她的手指紧张地扭动着手提包的把手....

Cretacic的音标：...