Once the cold water enters the flack, the vapor pressure falls quickly.一旦冷水进入长颈瓶, 水气压就迅速下降.A test device for flack flowing systems based on virtual instrument technology is developed.研制基于虚拟仪器技术的高炮随动系统性能检测装置....

black的第三人称单数（三单）为：blacks...

black的一般过去时为：blacked...

blackball的现在进行时为：blackballing...

blackhead的复数形式为：blackheads...

n.窒息瓦斯...

blackthorn的音标：blackthorn的英式发音音标为：['blækθɔ:n]blackthorn的美式发音音标为：['blækθɔrn]...

blacklist的现在进行时为：blacklisting...

Blacks have been hurt by racial inequalities in housing and education.住房与教育方面的种族不平等现象让黑人深受伤害。There are about thirty-one million blacks in the US.美国大约有3,100万黑人。Blacks have always been the indigestible mass.黑人总是一个难吸收的群体。Fa...

blackbirds的音标：blackbirds的英式发音音标为：[b'lækbɜ:dz]blackbirds的美式发音音标为：[b'lækbɜdz]...

n.黑莓( blackberry的名词复数 )...

Work slackens on a hot day.热天工作缓慢.If the demand for one product slackens, another line of business can provide balance.如果一种产品的需求量减少, 另一种产品可代替它,使营业保持平衡....

There was a blackboard with seven names chalked on it.黑板上用粉笔写着7个人名。With a stick of chalk he wrote her order on a blackboard.他用一截粉笔将她的指示写在黑板上。I wrote the date at the far left of the blackboard.我把日期写在黑板的最左边。...

blackberries的音标：...

lack的复数形式为：lacks...

adj.黑的( black的最高级 )，黑色的（以幽默的方式对待讨厌的或可怕的事物，如凶杀），黑暗的，（关于）黑人的...

黑鼻病...

blackens的音标：...

The output signal from the detector may be the blackening of a photographic emulsion.探测器的输出信号可以是照相乳胶的黑度.The solid decomposed rapidly with blackening.固体迅速分解并变暗.Dawn comes and you see its path - the glistening leaf, the gl...

blackballed的音标：...

botallackite的音标：botallackite的英式发音音标为：[bəʊ'tɔ:lækaɪt]botallackite的美式发音音标为：[boʊ'tɔlækaɪt]...

blackout的复数形式为：blackouts...

Blacksmiths的音标：...

blacks的音标：blacks的英式发音音标为：['blæks]blacks的美式发音音标为：['blæks]...

alackaday的音标：alackaday的英式发音音标为：[əlækə'deɪ]alackaday的美式发音音标为：[əlækə'deɪ]...

v.胁迫，尤指以透露他人不体面行为相威胁以勒索钱财( blackmail的过去式 )...

clack的现在完成时为：clacked...

n.灯烟，灯黑，油烟...

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

n.黑心病（植物组织内部变黑的疾病）...