r. according to nature; by natural means; without artificial help
r. through inherent nature
r. in a natural or normal manner
常见例句
1
often the one desired or expected v be engaged in an activity, often for no particular purpose other than pleasure v behave unnaturally or affectedly v perform on a stage or theater
2
n an ester of glycerol and fatty acids that occurs naturally as fats and fatty oils
3
n an antibody that occurs naturally against foreign tissues from a person of the same species
4
any of various forms of aluminum oxide occurring naturally as corundum
5
A substance (sometimes the product of a specific micro-organism and sometimes naturally present in the blood or tissues of an animal), capable of producing immunity from certain diseases, or of counteracting the poisonous effects of pathogenic bacteria.
