陷入sink intofall intoget intorun intotrap in fall into a passive position;陷入被动地位find oneself tightly encircled;陷入重围be lost in thought; be deep in meditation陷入沉思
fall into 落到较深，大的地方，深谷drop into 掉进较浅或小的地方，杯子，盆fall into 是自己掉进，而drop into 带有外因。举个小例子吧：一位中国学生向外国人介绍屈原，他误说道：he droped in to the river . 老外忙问道：who pushed him ? 他；连忙答道：himself .相信你能从这个故事中体会到drop into 的含义吧！
