全民义务植树日
quán​mín​yì​wù​zhí​shù​rì

Arbor Day

  1. 全民 quán​mín
    the entire populace
    the whole people; all the citizens of a country
  2. 义务 義務 yì​wù
    volunteer
    describes work or services provided for free or without pay
  3. 植树 植樹 zhí​shù verb + noun
    to plant trees
    to plant trees; to carry out afforestation
  4. 日 rì noun
    date
    a specific day of the month; a special day like a festival or birthday