To make an empty show of strength; to bluster; to put on a grand display without substance.
他每次遇到小挑战都要簸土扬沙，结果常常是雷声大雨点小。
Every time he encounters a small challenge, he makes a big fuss, and often it turns out to be much ado about nothing.
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To make an empty show of strength; to bluster; to put on a grand display without substance.