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di.vid.ersHdI5vaI7dEz, $-dLzpl na piece of equipment used in mathematics consisting of two movable parts which are joined at one end and have sharp points at the other and which are used for measuring lines and angles and for marking positions along lines两角规;圆规Don't forget to bring some/a pair of dividers to the next class.下节课别忘了带一只两角规。 Mathematics
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