It looks like a triangle, because a thick line was used.

它看起来像一个三角形，因为用了粗线条。

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The boundary between the Australia Plate and the Sunda Plate is a thick black line.

澳大利亚版块与巽他板块的板块边界在图上以一条粗而黑的线条表示。

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Lincoln and the C.O.S walk over a thick yellow line painted on the floor, Bellick moves between Lincoln and the others and tells Michael and Veronica that they can't go any farther.

Lincoln和狱警们走过一条漆在地面上的粗黄线，Bellick走到Michael和Veronica面前，告诉他们，他们不能再往前走了。

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"We now draw a thick line under the Bundesliga season and see now if all the players are fit for the final, " Klopp told AFP after the defeat.

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The competing time frames have split the U.S. and Israeli governments since last year, when Mr. Netanyahu stood before the United Nations and drew a thick red line across a drawing of a bomb.

WSJ: Obama Sets Timeline on Iran Nuclear Bomb

She divided the label into two parts, separated by a thick black line, and placed the critical information, such as the name and dosage of the medication, at the top, with everything else relegated to the bottom.

WSJ: When Simplicity Is the Solution