所长

what one is good at

head of an institute etc

actually / place / classifier for houses, small buildings, institutions etc / that which / particle introducing a relative clause or passive / CL:個|个[ge4]

length / long / forever / always / constantly

chief / head / elder / to grow / to develop / to increase / to enhance

not having any special skill / without any qualifications

lit. for some things a foot may be too short, and for the other an inch will suffice (proverb) / fig. everyone has their strong and weak points / everything has its advantages and disadvantages

each displays their own strengths (idiom)