届 ⇒
届 jiè, [屆], to arrive at (place or time)/period/to become due/classifier for events, meeting...
届时 jièshí, [屆時], when the time comes/at the scheduled time
本届 běnjiè, [本屆], current/this year
下届 xiàjiè, [下屆], next office holder/next to serve
上届 历届 lìjiè, [歷屆], all previous (meetings, sessions etc)
换届 届满 jièmǎn, [屆滿], the end of fixed period in office/expiration of a term
应届 yīngjiè, [應屆], this year's/the current year's