improve的一般过去时怎么拼写？

But a concerted effort has begun to improve the quality of the urban air.但是各方已经开始共同努力改善城镇空气质量。Another goal is to help manufacturers of antivenom medicines improve their products.另一方面,还致力于帮助那些抗蛇毒血清的生产厂家改善其产品(质量).Objective...

improve的近义词有：improve, better, perfect, refine。下面这些动词均有"改进，改善"的含义：improve：最常用词，多指状态或性质上的深刻或重要改进，也可指自身能力的提高。 better：多用于口语，指适当地改善原来并非很差的状态或性质，也指社会地位、经济状况的改善。perfect：语义强，通常指使方法、技术等达到完善美好的境地。refine：侧重指使语言、仪态等变得文雅、优美，也可指技艺等的提高...

improve的第三人称单数（三单）为：improves...

Massage is used to relax muscles, relieve stress and improve the circulation.按摩可以使肌肉放松，缓解压力和促进血液循环。Lights clipped onto life jackets improve the chances of rescue.别在救生衣上的灯提高了获救可能性。As soon as relations improve they will be...

improve的现在完成时为：improved...

improve的音标：improve的英式发音音标为：[ɪm'pru:v]improve的美式发音音标为：[ɪm'pruv]...

improve的反义词有：impair, worsen, deteriorate, worsen, deprave, impair。vt. & vi.improve的反义词（改善;增进;利用）：impair, worsen, deteriorate。improve的反义词（其他释义）：worsen, deprave, impair。...

vt.提高（土地、地产）的价值，利用（机会），改善，改良vi.变得更好，改进，改善...

improve的现在进行时为：improving...

improve的近义词/同义词有：develop, ameliorate, meliorate, perfect, better, progress, mend, advance, gain, cultivate, enrich, refine, promote, better, progress, help, appreciate, revise, mend, recover, enhance, advance, develop, p...

He was unrelenting in his pursuit of legal mandate.他坚决要求得到合法的托管权....the unrelenting hardship of everyday life in medieval Europe.中世纪时欧洲日常生活的无尽困苦...an unrelenting downpour of rain.下个不停的瓢泼大雨She established her authority wi...

“灵活”的近义词/同义词：灵敏, 机动, 活络, 圆活, 天真, 活泼, 生动, 矫健, 矫捷, 活跃, 敏捷, 伶俐, 灵便, 灵动, 乖巧, 精巧, 灵巧, 聪明, 轻巧。...

They triumphed over adversity.他们战胜了厄运.He triumphed over his political enemies.他战胜了自己的政敌.He had met the challenge and triumphed.他迎接挑战并取得了胜利....

chokebore的音标：chokebore的英式发音音标为：['tʃəʊkˌbɔ:]chokebore的美式发音音标为：['tʃoʊkˌboʊr]...

acidity的近义词/同义词有：venomness, venomousness, acerbity, trenchancy, virulency, acrimony, asperity, sharpness, virulence, causticity, astringency, harshness, acrimoniousness。n.acidity的近义词（酸,尖刻,恶毒）：venomness, venomousness, ace...

lactobacillus的音标：lactobacillus的英式发音音标为：[ˌlæktəʊbə'sɪləs]lactobacillus的美式发音音标为：[ˌlæktoʊbə'sɪləs]...

二氢广木香内酯...

sunlight的音标：sunlight的英式发音音标为：['sʌnlaɪt]sunlight的美式发音音标为：['sʌnˌlaɪt]...

grosses的音标：...

v.纵容，细心照顾，娇惯...

The photochemical reactions transform the light into electrical impulses.光化学反应使光变为电脉冲。The sofa can transform for use as a bed.这个沙发可改作床用.To transform hills into fields is an extremely tough job.改山造田可是硬碰硬的事....

n.无核小葡萄干( currant的名词复数 )，茶藨子属植物（的果实）...

endosubtilysin的音标：endosubtilysin的英式发音音标为：[endəʊsətɪ'laɪzɪn]endosubtilysin的美式发音音标为：[endoʊsətɪ'laɪzɪn]...

n.分（菲律宾以及拉丁美洲的货币单位）( centavo的名词复数 )...

lull的近义词/同义词有：quiet, break, lapse, calm, respite, pause, silence, stillness, hush, recess, letup, rest, intermission, interpreter, intermission, stillness, respite, break, hush, plateau, alleviate, lapse, quiet, letup, c...