They cut it themselves into very thin slices with a long flat knife.

他们自己用一把又长又平的刀把它切成非常薄的薄片。

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The flat cut on the antelope's chin shows that its tongue was cut by a very sharp flake.

羚羊下巴上面平整的切痕，显示它的舌头是被非常锋利的片状器具切割的。

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Its sheer rock sides sweep up from a broad base until they cut off abruptly at the flat summit.

它陡峭的岩石边从一个宽阔的基地上拔地而起，直到在平坦的山顶下突然被切断。

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Sol 1, as the days are known on Mars, was a busy time for the three-legged lander, which set down Sunday in relatively flat terrain cut by polygon-shaped fissures.

NPR: Phoenix Sends Color Photos of Mars to NASA

It is too much to expect this Congress to enact a flat tax that's a tax cut--too many check-writing special interests guarantee that.

FORBES: Fact and Comment

Although many big emerging markets have built up foreign-exchange reserves and cut their external debts, in eastern Europe reserves have been flat, external debts have risen and current- account deficits have grown considerably in the past decade.

ECONOMIST: Globalisation