A full-length mirror, curtain, or piece of clothing reaches the floor.

Victoria wore a full-length evening gown to the ball. 维多利亚穿了一件及地长裙去参加舞会。

of the usual length and not made shorter

a full-length feature film 标准长度的故事片

used to describe the way a person moves or lies so that their whole body is flat on the floor

He was lying full-length on the grass. 他四肢伸开躺在草地上。