【transportation】
【on】large vehicles or large ways of travelling
on the train,on the bus,on the plane,
in a boat(小船),on a boat(大船),
on a bicycle(没有发动机或引擎，所以给它一个单独的用法，因为你必须坐在自行车上，永远也无法到自行车里面去)
in,only two things for in:car&taxi.(you own your own car,dont share with others)
【by】(how you get there)
when we talk about "in"and"on",you are...we are talking about how you are in the vehicle.
【location】
at specific
meet me at my house
on,an area
in,there is a surface,but you have to go over and in sth
【by】(close,near)
this is by the red marker(这个在红色马克笔旁边)
【time】
at 9:15,it says very specific time when we deal with hour and minute.
day,on,on monday,on tuesday,on christmas day.
specific time with"at",on the day with"on"
in,in september:long periods of time.
by,it is the end of a specific time.eg:i need it done by tonight.that is the time,it is specific,and that is the end time or your limit.
[recap]概括概要
【transportation】
【on】is used for large groups of people travelling by train,bus,plane,or boat.
in boat;on the bicycle;in car/taxi.
【by】is how you get there,by car,plane,or train.
【location】
we talked about specific with"at",on the surface or in an area for "on",like a carpet,think like carpet.
in,think like a box,you go in a box.
by,is similar to close or near or close to when you used it.
【time】
at is one time only.
on is for days.
in is used for longer perionds of time,like,in september,in1992.
end time when we use by.