21.   His body of work became a milestone because it gave people a specific direction.

a. + direction >>共 562
right 16.51%
opposite 13.82%
different 10.77%
new 9.08%
same 5.29%
the 4.68%
wrong 4.56%
general 2.12%
future 1.83%
clear 1.75%
specific 0.43%
specific + n. >>共 995
plan 1.90%
date 1.79%
area 1.55%
figure 1.54%
target 1.45%
proposal 1.44%
issue 1.41%
case 1.34%
number 1.33%
detail 1.26%
direction 0.14%
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