21.   At Parliament, three men in skirts of palm fronds raised an ornate flag of pounded tree bark in defiance of the military.

22.   He wove his own clothes from strips of tree bark and kept track of time by marking the cycles of the moon.

23.   International aid organizations have said that hunger is widespread in North Korea, and that many people resort to eating wild grass and tree bark to survive.

24.   International aid organizations say that hunger is widespread in North Korea and that many people are eating wild grass and tree bark to survive.

25.   Many have resorted to eating wild grass and tree bark.

26.   Recent visitors reported diseases spreading and people eating tree bark and grass roots.

27.   Rubber is drawn by shaving a thin portion of the tree bark with a knife, and attaching pouches around it to collect the dripping viscous fluid.

28.   Recent visitors reported diseases spreading and people eating tree barks and grass roots.

29.   Severe food shortages have been stunting the growth of malnourished children and forcing people to eat grass and tree bark to supplement their meager rations.

30.   The study found DDE most highly concentrated in tree bark in the Midwest and Southwest, agricultural areas where DDT once was most widely used.

n. + bark >>共 27
tree 42.15%
dog 10.74%
pine 9.92%
birch 8.26%
cedar 4.96%
fir 2.48%
yew 2.48%
animal 1.65%
cypress 1.65%
willow 1.65%
tree + n. >>共 372
trunk 13.24%
branch 13.18%
limb 11.16%
root 4.98%
stump 4.27%
bark 2.79%
species 1.70%
stand 1.53%
leaf 1.42%
ring 1.31%
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