21.   The stalks contain cellular tissues traversed by strands of fibrovascular bundles which provide fluid transport and structural stability, Abdel Azim said.

a. + transport >>共 463
public 35.18%
military 6.70%
maritime 1.85%
new 1.20%
russian 1.16%
former 1.12%
private 1.04%
japanese 0.96%
french 0.92%
local 0.84%
fluid 0.84%
fluid + n. >>共 276
motion 3.79%
transport 3.31%
buildup 3.15%
retention 3.15%
loss 2.84%
movement 2.52%
situation 2.52%
intake 2.37%
secretion 2.05%
absorption 1.89%
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