Take the stairs instead of the lift.
走楼梯,不要乘电梯。
Skip the elevator and take the stairs.
不坐电梯,走楼梯。
Take the stairs instead of the elevator.
不坐电梯而爬楼梯。
Whether you take the elevator to the top of the Hancock Tower or whether you walk up the stairs, the change in gravitational potential is identical.
不管你是乘电梯,去大厦的顶层,或者是步行,重力势能的变化是相同的。
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