打开：通过转动或按下按钮、移动开关或杠杆等方式打开（某物）。
开启：通过转动或按下按钮、移动开关或杠杆等方式开启（某物）。
switch on // [ switching switched switches ]
动词词组 If you switch on a light or other electrical device, you make it start working by operating a switch. 用开关开启
She emptied both their mugs and switched on the electric kettle.
她倒空了他们俩的杯子，然后打开了电水壶。
cause to operate by flipping a switch
同义词： turn on
合闸
接通
接入
接通
接通
... spend on把时间、精力花在某方面 switch on接通（电源）, take on喜欢；养成；轻易学会， ...
... switch 转换 switch on (用开关)开启... off 表示状态的关闭或离开...
... switch vt转换，转变 switch on开(电灯、机器等) switch off关(电灯、机器等)；失去兴趣；觉得乏味 ...
You switch on, push in the disk and there you are!
你打开开关，把磁盘推进去就行了！
He snatched up the receiver and his free hand groped for the switch on the bedside lamp.
他一把抓起听筒，空着的手则摸索着找床头灯的开关。
They switch on slowly, and they are reluctant to switch off.
它们启动缓慢，并且很难关闭。
Five years ago, dairy farmer Darryl Vander Haak flipped the switch on the first electric generator in Washington State powered by manure.
VOA : standard.2010.02.23
Of course, to turn the on-off switch on is harder when somebody's in a coma.
当然要开启这个开关难度更大,当人陷入昏迷。
死亡课程节选 : 耶鲁公开课
And so we can't turn the switch on in the normal way.
让我们不能像平时一样正常开关。
死亡课程节选 : 耶鲁公开课
"By imposing a tax on every American who drives a car or flips on a light switch, this plan will drive up the prices for food, gasoline and electricity,".
VOA : standard.2009.06.27
It is not something that we can switch on and off whenever it suits us.
FORBES: Notre Dame's Manti Te'o: The 5 Steps to Authentic Leadership
When you first switch on an iPhone, you are asked for your Apple account.
"We're not that good yet to be able to turn that switch on and off, " C.