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th 音標拼音: [t'i'etʃ] Th n 1: the fifth day of the week; the fourth working day [synonym: {Thursday}, {Th}] 2: a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands [synonym: {thorium}, {Th}, {atomic number 90}] Th \Th\ In Old English, the article the, when the following word began with a vowel, was often written with elision as if a part of the word. Thus in Chaucer, the forms thabsence, tharray, thegle, thend, thingot, etc., are found for the absence, the array, the eagle, the end, etc. [1913 Webster] Thack |
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