of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]
really and truly[cedict]
aim; clear[cedict]
你
nǐㄋㄧˇ
you[cedict]
掌握
zhǎng wòㄓㄤˇ 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)[cedict]
after; then (afterwards); after that; afterwards[cedict]
又
yòuㄧㄡˋ
(once) again; also; both... and...; again[cedict]
掌握
zhǎng wòㄓㄤˇ 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)[cedict]