backcrossed的音标？

F 1 females could be backcrossed to the male homozygous recessive parent.也可用雌性F1与隐性纯合雄性亲本回交....

v.回[逆]交，回交杂种( backcross的过去式和过去分词 )...

“屈服者”的英语可以翻译为：ender，genuflector ...

在某些方面...

“配糖物”的英语可以翻译为：[化] glycoside，glucoside ...

“不密实”的英语可以翻译为：leakiness ...

The snails are no larger than one centimetre across.这些蜗牛体宽不超过1厘米。Most species live off aquatic snails.绝大多数种类以吃螺为生。I think I'll try the snails for lunch — I'm feeling adventurous today.我想我午餐要尝一下蜗牛——我今天很想冒险....

“一壁”的英语可以翻译为：[书] at the same time，simultaneously ...

“下层”的英语可以翻译为：lower levels，lower strata，sublayer，[生] substratum，substrate ...

provision的近义词/同义词有：reservoir, heap, treasure, collection, pile, amassment, store, hoard, fund, stock, supply, stockpile, accumulation, furnishment, fitting, furnishing, catering, rigging, supply, purveyance, giving, acco...

clear的反义词有：doubtful, indefinite, dull, obscure, dim, cloudy, vague, dark, dark, cloud, stain, ambiguous, vague, cloudy。adj.clear的反义词（晴朗的;清晰的;明确的）：doubtful, indefinite, dull, obscure, dim, cloudy, vague, dark。clear的反义词（其他...

n.实习，训练，练习...

n.填鸭式主义的教师，谎言...

“冉冉”的拼音为：rǎn rǎn ...

adv.合乎科学地...

n.房客，租住者，投宿者...

“损耗”的反义词：积蓄, 增益。...