sis的中文意思、音标与词形变化

n. [美口]姐妹（等于sister）

n a female person who has the same parents as another person n a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors n a complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela) n the syllable naming the seventh (subtonic) note of any musical scale in solmization