* @param arr 数组
"At the end of the day, oil and gas companies have to deliver value to shareholders," he says. "They have very good managers. You can build anything, as long as you can pay for it.
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If those don’t render for you for whatever reason, UPPER_HALF_BLOCK is a square that takes up the full width and upper half of a character, and FULL_BLOCK is a rectangle that takes up the full width and height of a character.
圖像來源，Getty Images