Planetary



GRE

解释

GRE 红宝书

• adj. 行星的
• ［记］ 来自名词planet ( 行星) +ary

Webster Collegiate

adjective

• Date: 1607
• 1.
  • a. of, relating to, being, or resembling a planet
  • b. erratic, wandering
  • c. having a motion like that of a planet <planetary electrons>
  • d. immense <the scope of this project has reached planetary proportions>
• 2.
  • a. of, relating to, or belonging to the earth ; terrestrial
  • b. global, worldwide <planetary politics>
• 3. having or consisting of an epicyclic train of gear wheels

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