他们仔细观看直到火车在远处消失的英文

• they watched the train until it disappeared in the distance

• 他们:    they
• 仔细:    careful; attentive
• 观看:    watch; view
• 直到:    until
• 火车:    train

例句与用法

1. They watched the train until it disappeared in the distance
   他们仔细观看直到火车在远处消失。