Idiom of the Day
sink or swim
to fail or succeed by one's own efforts
My cousin will have to sink or swim when he begins his new job.
Vitamin
Vitamin : b12 (cobalamin)
Occurrence : liver, milk, yolk, fish, meat, oysters, quark, barm
Lack : aenaemia, nerve disturbances, nervous disturbances, changes in the lung and the spinal marrows
Daily need : approx. 5 mic g.
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