1. switch
If you switch your phone for a newer model it'll work better.
Next time I switch jobs, I need work that will let me make use of the experience I've gained up to now.
If you touch this switch, it will open the curtains automatically.
Can I switch over from a sightseeing visa to a business one?
Factories have been urged to switch from coal to a cleaner fuel.
Stop switching radio stations, it's annoying!
light switch
In America, scores of free agents switch teams every year.
On no account must you touch that switch.
Learning lessons from Europe, Japan has to switch its economic-oriented policy to a consumer-conscious one, in order to cope with the coming unprecedented aging society towards the 21st century.
Friendly Reminder: Please keep in mind the closing time of the line you need to switch to, so as to avoid delays in your trip.
If you switch to a low-fat diet, your health will improve.
switching system between different tanks
He switched channels, hoping to find something more interesting.
I switch on my laptop, start up the browser, and type in the address I've already learnt by heart.
2. Lever
Press down on the lever.
Pull this lever to open the gate.
The screw, the lever, the wedge, the pulley, etc. are called simple machines.
They lifted the rock by means of a lever.
You can adjust the seat height by moving the adjustment lever up.
Lever creates leverage by turning a long arm against a fulcrum.
There's gotta be a lever or a button over here.
To stop the machine, just pull this lever.
Hard work is only one lever that you have at your disposal, because you can make your life lucky.
"Is to use the threat as a lever against your enemy in order to make him into your ally."