backyard的复数形式为：backyards...

n.棱皮龟，革龟...

n.甘蓝菜的害虫...

blacklist的音标：blacklist的英式发音音标为：['blæklɪst]blacklist的美式发音音标为：['blækˌlɪst]...

aback的音标：aback的英式发音音标为：[ə'bæk]aback的美式发音音标为：[ə'bæk]...

backlands的音标：backlands的英式发音音标为：['bæklændz]backlands的美式发音音标为：['bæklændz]...

Quebec remained a backwater until the 1960s.魁北克直到20世纪60年代还是一片死气沉沉。It is a commonplace to say that Northern Ireland is a backwater in the modern Europe.说北爱尔兰是现代欧洲死气沉沉的落后地区已是陈词滥调了。I find this town too much of a backwater.我...

backbench的音标：backbench的英式发音音标为：['bækbentʃ]backbench的美式发音音标为：['bækbentʃ]...

vt.使变黑，把…弄黑，诽谤，诋毁，中伤（名誉等）vi.变黑...

snacks的音标：snacks的英式发音音标为：[snæks]snacks的美式发音音标为：[snæks]...

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

backwash的音标：backwash的英式发音音标为：['bækwɒʃ]backwash的美式发音音标为：['bækwɑʃ]...

bushwhack的现在完成时为：bushwhacked...

attack的一般过去时为：attacked...

backslide的音标：backslide的英式发音音标为：['bækslaɪd]backslide的美式发音音标为：['bækˌslaɪd]...

n.伐木工人，木材商的佣工，短茄克衫...

adj.单人可携带的...

jacket的现在进行时为：jacketing...

She passed the needle through the rough cloth, back and forth.她一针一针地缝那块粗布。The prosecution and defense were bandying accusations back and forth.原告和被告你来我往，互相指责。Max zips back and forth across the living room.马克斯在客厅里快速地来回走动。...

acknowledge的第三人称单数（三单）为：acknowledges...

jacket的现在完成时为：jacketed...

We cannot put back the clock.我们无法让时光倒流。The date had been put back from March to April.日期由三月推迟到四月.News conferences due to be held by both men have been put back.原定两个人共同举行的新闻发布会被推迟。...

unpacked的音标：unpacked的英式发音音标为：[ʌn'pækt]unpacked的美式发音音标为：[ʌn'pækt]...

rack的第三人称单数（三单）为：racks...

acknowledge的音标：acknowledge的英式发音音标为：[ək'nɒlɪdʒ]acknowledge的美式发音音标为：[ək'nɑlɪdʒ]...

n.掷回，挫折，阻止，大倒退...

track的近义词有：hunt, explore, track, seek,pursue, follow, chase, hunt, trace, track, trail。下面这些动词均含"搜索，寻找"的含义：hunt：一般指寻找所需的物件，或对罪犯的搜寻，特指追猎。explore：一般指对未知事物或新生事物的探索、观察与研究。track：侧重按一定线索追查出结果。seek：语义庄重，语气强，使用广。多暗示做出很大努力去寻求某人或物。...

packaging的音标：packaging的英式发音音标为：['pækɪdʒɪŋ]packaging的美式发音音标为：['pækədʒɪŋ]...

倒缆，反向弹簧...

black-and-white的音标：black-and-white的英式发音音标为：[b'læk'ændw'aɪt]black-and-white的美式发音音标为：[ˌblækən'hwaɪt, -'waɪt]...