Lengthens

• Except when it's blowing up; and then they lengthens it out. 查尔斯·狄更斯. 雾都孤儿.
• In the trombone, valves are replaced by a section which slides in and out and shortens or lengthens the tube. 伯莎M.克拉克. 科学通论.

海勒姆手打