like: khối u
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BEGINNER LEVEL
exact:
VNEN 
khối u * ☊ 
excrescence, protuberance, growth, tumor * ☊
[ khối ] : mass, block, square, cubic, volume
[ u ] : (1) to swell (part of the body), swollen; (2) (wet) nurse; (3) dark; (4) quiet, secluded
[ khối ] : block