为什么植物在外界总是生命很顽强，风吹雨淋都不怕，石头缝也可以开出花，而家养的时候却很容易养死?

(also, often used before an adjective without intensifying its meaning, i.e. as a meaningless syntactic element)

for what reason?

used in 万俟[Mo4 qi2]

(coll.) a temperature (i.e. abnormally high body heat)

plant

to retreat

life (as the characteristic of living beings)

likely; liable to; apt to

tenacious

already

(used before a verb to indicate an action in progress)

really and truly

blossom

but (not)