a at or within a short distance in space or time or having elements near each other
a close in relevance or relationship
a not far distant in time or space or degree or circumstances
s rigorously attentive; strict and thorough
s marked by fidelity to an original
s (of a contest or contestants) evenly matched
s crowded
s lacking fresh air
s of textiles
s strictly confined or guarded
s confined to specific persons
s fitting closely but comfortably
s used of hair or haircuts
s giving or spending with reluctance
s inclined to secrecy or reticence about divulging information
r (superlative of `near' or `close') within the shortest distance
a. 最靠近的（close的最高级）