بیومکانیک

تنش آسایی

grave concern ( =very great concern ) This disagreement was a matter of grave concern to the US. With grave concerns regarding. . . Dear Secretar ...

Crime doesn't pay. —used to say there is more trouble than benefit from committing a crime.

To leave in a timely and inconspicuous manner, so as no to make a scene or attract attention to oneself. ( sometimes used as imperative. ) The CEO ...

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