1 B1 ニュートラル
出来事について、大事な時の前の時期に起こり、それにつながる。
"Tensions had been rising in the months leading up to the outbreak of the conflict."
“
In the days leading up to the invasion, diplomats made last-ditch attempts to avert war.
— Common news media phrasing; representative of BBC and broadsheet reporting style
分離不可