他们的目光相遇了，两人从此坠入了爱河。

[误] Their eyesight met, and they fell in love with each other ever since.

[正] Their eyes met, and they fell in love with each other ever since.

注：“目光”不能用 eyesight 表达，因为 eyesight 只能指“视力”，如：If you eat a lot of fish, you can have good eyesight(多吃鱼会使你的视力好)。而 eye 不仅表示“视力”，还可以指“眼光”。如：a good eye for distance(能看很远的好视力)和 She met his eye across the room(隔着房间，她与他的目光相遇了)。