Many boys explode firecrackers on the Fourth of July.许多男孩子在7月4日那天放爆竹.The firecrackers were crackling and spluttering.鞭炮劈里啪啦地响.The firecrackers scared the cat.爆竹声把那只猫吓跑了....

This shop only sells paperbacks.这家书店只出售平装本的书.Other paperbacks were selling for ten or 15 cents each.其它的平装书每本才卖十或十五美分.I have a lot of old paperbacks to sell.我有许多旧平装本书要卖....

n.救生衣...

Blackland element with fertility taller and celebrated, but come for years its fertility drops apparently.黑土素以肥力较高而著称, 但多年来其地力明显下降....

slacken的音标：slacken的英式发音音标为：['slækən]slacken的美式发音音标为：['slækən]...

blackcock的音标：blackcock的英式发音音标为：[b'lækkɒk]blackcock的美式发音音标为：[b'lækkɒk]...

n.敲诈勒索，诈骗...

自动位置对准，自跟踪...

black的现在进行时为：blacking...

n.爆竹，鞭炮...

backspace的音标：backspace的英式发音音标为：['bækspeɪs]backspace的美式发音音标为：['bækspeɪs]...

v.跟踪( track的过去式和过去分词 )，跟踪摄影，留下（脏）足迹，追随（潮流等）...

[人名] [英格兰人姓氏] 布莱克本住所名称，来源于古英语，含义是“黑的+溪流”(black+stream)，[地名] [澳大利亚、美国、英国] 布莱克本...

sackfuls的音标：...

package的音标：package的英式发音音标为：['pækɪdʒ]package的美式发音音标为：['pækɪdʒ]...

n.灰色动物（如：灰鲸，黑头鸦，斑背潜鸭等）...

astrotracker的音标：astrotracker的英式发音音标为：['æstrəʊtrækər]astrotracker的美式发音音标为：['æstroʊtrækər]...

回填机...

adj.单人可携带的...

slack的一般过去时为：slacked...

n.方格纹毛毯...

Back off, Mom, I'm old enough to make my own decisions!你别管，妈妈，我已经能够自己作决定了！They persuaded the Federal Reserve to back off of tight money.他们说服了联邦储备局在货币奇紧的情况下向他们让步.The world backs off when you make it back off, right?只...

把…收藏起来，吃很多...

The army sent me a postcard acknowledging my request.军队寄给我一张明信片告知我的申请书已收到。It is a great relief to allow us ourselves the luxury of acknowledging our human frailties.让我们自己享受承认人类的弱点的快乐是一大慰藉.For some, even acknowledging a p...

shackle的第三人称单数（三单）为：shackles...

quack的现在进行时为：quacking...

v.以棒打，胁迫（blackjack的第三人称单数形式）...

jacklight的音标：jacklight的英式发音音标为：['dʒæklaɪt]jacklight的美式发音音标为：['dʒækˌlaɪt]...

n.（为吸引买主等而对某物进行的）包装( package的名词复数 )，包装袋，打包...

Don't think this job a piece of cake. You'll have to rack your brains once you start on it.别以为这工作是易如反掌的事, 你做了就知道它是很伤脑筋的.Turn the cake the right way up on to a wire rack…把蛋糕翻到合适的方向对准金属丝架上。I took the key for the ...