difficult to get/ hard to come by/ rare/ seldom

来 * 1 lai2 to come/ to arrive/ to come round/ ever since/ next

出 * 2 chu1 to go out/ to come out/ to occur/ to produce/ to go beyond/ to rise/ to put forth/ to happen/ classifier for dramas; plays; operas etc

进 * 2 jin4 to advance/ to enter/ to come (or go) into/ to receive or admit/ to eat or drink/ to submit or present/ (used after a verb) into; in/ to score a goal

遇到 * 3 yu4 dao4 to meet/ to run into/ to come across

出版 * 5 chu1 ban3 to publish/ to come off the press/ to put out

开放 * 5 kai1 fang4 to lift (a ban or restriction)/ to open to the outside world (politics)/ to open for public use/ to come into bloom (of flowers)

产生 * 5 chan3 sheng1 to arise/ to come into being/ to come about/ to give rise to/ to bring into being/ to bring about/ to produce/ to engender/ to generate/ to appear/ appearance/ emergence/ generation/ production/ yield

打交道 * 5 da3 jiao1 dao4 to come into contact with/ to have dealings

来自 * 5 lai2 zi4 to come from (a place)/ From: (in email header)

吃亏 * 5 chi1 kui1 to suffer losses/ to come to grief/ to lose out/ to get the worst of it/ to be at a disadvantage/ unfortunately

登陆 * 6 deng1 lu4 to land/ to come ashore/ to make landfall (of typhoon etc)/ to log in

起源 * 6 qi3 yuan2 origin/ to originate/ to come from

觉醒 * 6 jue2 xing3 to awaken/ to come to realize/ awakened to the truth/ the truth dawns upon one/ scales fall from the eyes/ to become aware

难得 * 6 nan2 de2 seldom/ rare/ hard to come by

逢 * 6 feng2 to meet by chance/ to come across/ to fawn upon

殴打 * 6 ou1 da3 to beat up/ to come to blows/ battery (law)

断定 * 6 duan4 ding4 to conclude/ to determine/ to come to a judgment

打架 * 6 da3 jia4 to fight/ to scuffle/ to come to blows/ CL:場|场[chang2]

问世 * 6 wen4 shi4 to be published/ to come out