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には
1. to, for, on, in, at
2. in order to, for
3. as for, regarding
4. while it is (was) the case that ..., indeed ... (but), certainly ... (but)
tbd
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くさる, 腐る
1. to rot, to go bad, to decay, to spoil, to fester, to decompose, to turn sour (e.g. milk)
2. to corrode, to weather, to crumble
3. to become useless, to blunt, to weaken (from lack of practice)
4. to become depraved, to be degenerate, to be morally...
tbd
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やすい, 易い
1. easy
2. likely to ..., have a tendency to ...
3. easy to ...
容易的;易于