v. to decay, or make sth. decay, naturally and gradually; n. the process or state of decaying and falling apart
A. rot
B. ratio
C. robe
D. rug
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a. in its natural state; not yet changed, used or made into sth. else
A. ripe
B. raw
C. spoil
D. remarkable
n. a small amount of sth. that shows what the rest of it is like
A. slipper
B. spectacle
C. specimen
D. specialist
n. the top layer of the earth in which plants, trees, etc. grow; v. to make sth. dirty
A. robber
B. soil
C. shield
D. rust
vi.to hit your foot against sth. while you are walking or running and almost fall; to walk or move in an unsteady way
A. spoil
B. specific
C. slender
D. stumble