parallax
🇺🇸
/ˈpærəlæks/
🇬🇧
/ˈpærəlæks/
The apparent change in position of an object when viewed along different lines of sight.
The astronomer used parallax to measure the distance to the faraway star.
天文學家利用視差測量了那顆遙遠恆星的距離。