bl
['bi:'el]
abbr.
balls 球;
black 黑色（的）;
baseline 基（准）线;
bomb line 轰炸线;
例句:
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Some at any rate of the German tanks north of Bl Gubi succeeded in breaking out.
无论如何,有一些在比尔克比以北的德国坦克成功地突围了.
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Another point is that a BL is a negotiable document.
除此之外,提货单可以转让.
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BL is an essential document in international trade and shipment.
提货单是国际贸易和船运中一种很重要的单据.