blacken的现在完成时怎么写？

vt.使变黑，把…弄黑，诽谤，诋毁，中伤（名誉等）vi.变黑...

blacken的第三人称单数（三单）为：blackens...

You need to grill the tomatoes until the skins blacken.你得把番茄烤到皮变黑为止。They're trying to blacken our name.他们企图败坏我们的名声。Don't blacken my name by spreading rumors.不要散播流言,破坏我的名誉....

blacken的现在进行时为：blackening...

blacken的一般过去时为：blackened...

You need to grill the tomatoes until the skins blacken.你得把番茄烤到皮变黑为止。He accused him of knowingly spreading falsehoods in an effort to blacken my character.他指控他蓄意散布虚假信息以玷污我的人格。Face by abrade hind, good blacken of Gong Heig...

blacken的音标：blacken的英式发音音标为：['blækən]blacken的美式发音音标为：['blækən]...

“龙船”的拼音为：lóng chuán...

“次卟啉”的英语可以翻译为：[化] deuteroporphyrin ...

chelator的音标：chelator的英式发音音标为：[ki:'leɪtə]chelator的美式发音音标为：['kɪleɪdə]...

lignifies的音标：...

Cooked kidney beans can be used in place of French beans.煮熟的红芸豆可以代替四季豆。Laurence Waters visited us in place of John Trethewy who was unfortunately ill.劳伦斯·沃特斯代替不幸生病的约翰·特雷休伊来拜访我们。Even grafting new blood vessels in place of...

culminate的音标：culminate的英式发音音标为：['kʌlmɪneɪt]culminate的美式发音音标为：['kʌlməˌnet]...

The indiscriminate use of fertilisers is damaging to the environment.乱用化肥会破坏环境。Modern fertilisers should be used judiciously.使用现代化肥应该非常谨慎。Farmers are reducing their use of chemical fertilisers to improve pollution levels...

“布帛”的拼音为：bù bó...

盖茨以一篇有关部署策略的鸿篇大论予以回应。Gates responds with a lengthy discourse on deployment strategy.卢克的回应就是把她的肩头抓得更紧了。Luke answered by tightening his grip on her shoulder.我提出挑战，但是没人回应。I called out a challenge, but there was no reply....

stab的第三人称单数（三单）为：stabs...

madhouse的复数形式为：madhouses...

“克鲁族”的英语可以翻译为：Kroo ...

n.等地温线，地下等温线...

adj.胚芽的，胎儿的，初期的...

prediction的音标：prediction的英式发音音标为：[prɪ'dɪkʃn]prediction的美式发音音标为：[prɪ'dɪkʃən]...