?熟悉

... get into 陷入；染上（坏习惯） get the hang of 熟悉；掌握；理解 get through 设法联系上；（设法）做完；通过 ...

?得知

set off 出发；动身；使爆炸；引起；使开始（做某事） get the hang of… 熟习；得知 hold one's sides with laughter；to laugh oneself sick 捧腹大笑 ..

?掌握

... get away with被放过；(做坏事)不受处罚 △get the hang of认识；掌握；理解 give birth to孕育发生；临盆 ...