3 月以来蓝莓价格大跳水，最大跌幅超 30%，甚至出现「按桶论斤」卖，为啥会降这么多？还会接着降吗？

of; ~'s (possessive particle)

price

to sell

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

to show up

variant of 是[shi4]

to tumble

since

notable

since (a previous event)

to sell

according to

even; so much so that