decimal point
uk
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/ˌdes.ɪ.məl ˈpɔɪnt/us
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/ˌdes.ɪ.məl ˈpɔɪnt/ noun the dot used between the whole numbers and the tenths of a decimal. In some countries a decimal comma is used instead. To divide by ten, move the decimal point one place to the left. 要除以10，将小数点左移一位。