用by 的时候,不用冠词：by bike/bus/plane/air/sea/train
用with等,冠词不能丢：see with the (one's) eyes;
in 表示用某种方式或者材料：in this /that way; in pencil/pen
要总结确实不易.
表示用途的介词区别最常见的分别有：with \by\in,请区别!最好用一两句话高度概括.
用by 的时候,不用冠词：by bike/bus/plane/air/sea/train
用with等,冠词不能丢：see with the (one's) eyes;
in 表示用某种方式或者材料：in this /that way; in pencil/pen
要总结确实不易.