1.   During the eighties, three significant developments occurred.

2.   However, two important developments occurred to derail the peace process.

3.   It is possible to rearrange the cells of the early mouse embryo in numerous combinations and normal development will still occur.

4.   Quantitatively this is liable to be peculiar to the apparatus, but, at least sometimes, such developments occur in ways that seem to have very general significance.

5.   It has already been remarked that corresponding developments occur at lower Rayleigh number when the Prandtl number is lower.

6.   These developments occurred against the background of a temporary relaxation of international competition.

7.   An even more important development occurred last week.

8.   An interesting development could occur if the Mets ever show interest.

9.   As the development occurs, remove all but five to seven of the newer canes on each plant.

n. + occur >>共 919
incident 6.74%
accident 6.06%
attack 4.78%
explosion 4.08%
blast 2.84%
death 2.35%
shooting 2.24%
problem 1.82%
crash 1.75%
injury 1.56%
development 0.31%
development + v. >>共 515
be 28.51%
come 4.42%
take 2.45%
have 2.31%
make 1.78%
occur 1.64%
lead 1.34%
mean 1.21%
follow 1.01%
continue 0.94%
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