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a lack of
缺乏,缺少 缺少....  detail>>
for lack of
因缺乏;因没有 由于缺乏…  detail>>
lack
 vi.  缺乏,不够,不足〔主要用现在分词形式 lacking〕。 Money is lacking. 钱不够。 Nothing is lacking for your...  detail>>
lack of
把…当儿戏 不够;不足;没有 缺乏,缺少 缺少  detail>>
lack(to)
没有,缺乏  detail>>
no lack of
不缺乏, 很多  detail>>
there is a lack of
缺少, 没有  detail>>
by spine
附刺  detail>>
spine
 n.  1.【解剖学】脊骨,脊柱。 2.【植物;植物学】针,刺。 3.【动物;动物学】棘状突起刺,壳针。 4.(书)背;(山)脊。&nbs...  detail>>