[掌握, zhǎng wò, ㄓㄤˇ ㄨㄛˋ]to grasp (often fig.); to master; to know well; to understand sth well and know how to use it; fluency; to control; to seize (initiative, opportunity, destiny)#1674[Add to Longdo]
[引, yǐn, ㄧㄣˇ]to draw (a bow); to pull; to stretch sth; to extend; to lengthen; to involve in; to attract; to lead; to guide; to divert (water); unit of distance equal to 10 丈[ zhang1 ], now one-thirtieth km or 33.33 meters#3188[Add to Longdo]
[章程, zhāng chéng, ㄓㄤ ㄔㄥˊ]rules; regulations; constitution; statute; articles of association (of company); articles of incorporation; charter (of a corporation); by-laws#7124[Add to Longdo]