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315 Activities V
exact: like: cái sở trường
VNEN 
cái sở trường * ☊ 
strength, strong point, forte * ☊
[ cái ] : (1) [CL for most inanimate objects, isolated events]; (2) object, thing; (3) female; (4) main, principle; (5) solid substances in soup (as opposed to nước, the liquid, broth)
[ sở ] : office, place (of work)
[ trường ] : school, field