trace the ancestry back to ...
…まで先祖をたどる
trace the origin
起源をたどる
trace the outlines of that conception
その概念のあらましをなぞる
traces of war
戦争のつめ跡
track down a suspect
容疑者をつきとめる
track up the floor
床に足跡をつける
trade friction between the two countries
両国間の貿易摩擦
trade in silk
絹を商う
trade negotiations
貿易交渉
trade punches [insults]
なぐり［ののしり］合う
