fidget spinner
(mathematics) That produces or exhibits hypercontractivity
A type of stress-relieving toy that is intended to be spun around in one's hand, and that generally consists of a bearing in the center of a design made from any of a variety of materials including brass, stainless steel, titanium, copper, and plastic.
simple past tense and past participle of foam at the mouth
(slang) excellent
長い講義の間、彼は神経を落ち着けるために手に持って回すストレス解消用のおもちゃをひそかに回していた。
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DiQt
Free
★★★★★★★★★★