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Use "tr" in a sentence
"There seems to be no suitable word in English for rendering the term trübe in the sense in which Goethe used it to denote the optical resistance of a more or less transparent medium."
"The beating of ihe Pheafant, as we term tr, is a noife chiefly made in the fpring of the year by the cock-birds -, it may be dif - tinftly heard a mile in a calm day."
"If you haven't done this before, you may find it as much an exercise in tr ust as in investing."