guard的现在完成时怎么写？

n.警卫，狱吏，看守，护卫队，防护装置vt.保卫，守护，看守，加防护装置，谨慎使用vi.警惕，警卫...

guard的近义词有：defend, protect, safeguard, guard, shield, shelter, harbour。下面这些动词均有"保护，保卫"的含义：defend：普通用词，指用武力或其它措施使人或物不受损害，消除危险。用作比喻时，指坚持某种行动、决定或意见。 protect：普通用词，指用某种手段作为防御工具以防危险或伤害。safeguard：语气强，指采取积极措施预防可能发生的一切攻击或危险。guard...

guard的音标：guard的英式发音音标为：[gɑ:d]guard的美式发音音标为：[gɑrd]...

A blade guard is fitted to protect the operator.为保证操作人员的人身安全安装了桨叶保护罩。Cute, cuddly, fleece - covered alpacas don't quite fit the image of a snarling guard dog.毛绒绒的羊驼十分可爱, 令人忍不住想去爱抚, 其形象与咆哮的护羊犬相去甚远.I should certainly ...

He rang for the guard to let him out.他按铃叫保安放他出去。Outside each door a guard sprang to attention as they approached.当他们走近时，每扇门外都有一名卫兵肃身立正。The guard eyeballed him pretty hard despite his pass.虽然他有通行证，卫兵还是直勾勾地盯着他。...

guard的第三人称单数（三单）为：guards...

guard的近义词/同义词有：watch, defend, shield, protect, secure, restrain, check, curb, control, security, harbor, secure, accompany, militia, keep, curb, check, maintain, watch, protect, conductor, protection, restrain, preserve,...

guard的现在进行时为：guarding...

guard的复数形式为：guards...

guard的一般过去时为：guarded...

sketches的音标：...

摸起来像是…，有…的感觉，想要…...

n.打兰，一杯，微量( dram的名词复数 )...

v. 使（火焰）燃起( enkindle的现在分词 )，刺激，激发，煽起（感情、热情等）...

We ate at a faddish new restaurant.我们在一家新开张的时尚餐馆吃饭。Dial get online to say, begin since thenceforth faddish.拨号上网一说, 从那时起开始风行.There was , to be sure, a faddish aspect to this enthusiasm.在这个热潮中, 肯定有赶时髦的成分....

intercultural的音标：intercultural的英式发音音标为：[ˌɪntə'kʌltʃərəl]intercultural的美式发音音标为：[ˌɪntər'kʌltʃərəl]...

vt.& vi.拍手，鼓掌，轻轻拍打某人，急速放置，振翼，拍翅膀n.鼓掌，拍手，拍手声，噼拍声，破裂声vi.鼓掌，拍手，啪地关上...

It'struck her as providential that she should be the instrument of his initiation.在她看来,由她来担任这个启蒙的角色实出天意.He explained the yellow fever epidemic as a providential act to discourage urban growth...他解释说黄热病的流行恰好减缓了城市的扩张。...

a viral infection病毒性感染He is suffering from viral meningitis.他患病毒性脑膜炎.A variety of viral agents cause aseptic meningitis or meningoencephalitis.各种病毒性因子可引起无菌性脑膜炎或脑膜脑炎....

v.贺礼，彩金( handsel的过去式和过去分词 )...

addict的一般过去时为：addicted...

Compared with the iodometry, spectrophotometry needs less reagents andstabile and safe.与碘量法相比, 分光光度法试剂用量少、人为因素影响小,对环境和操作者危害小....

honeymoon的一般过去时为：honeymooned...

“街市”的近义词/同义词：市井。...

飞机攀升到370英尺时，开始偏航。As the plane climbed to 370 feet, it started yawing.两只吊舱的独立俯仰和偏航均会产生噪声.Independent pitch and yaw of the two birds produce noise.只有对接近于轴对称的飞行器,俯仰与偏航的耦合才能略去.Pitch - yaw coupling can be neglected only for n...