https://online2.tingclass.net/lesson/shi0529/0008/8490/150.mp3
https://image.tingclass.net/statics/js/2012
30. There is no easy solution to Japan’s labor________.
A. decline B. vacancy C. rarity D. shortage
decline 下降,下垂
vacancy 空位(無(wú)人占用)空置,空缺
rare 稀少的,珍貴的
rarity 稀少
rare book 珍藏本
rare animal 珍奇動(dòng)物
best seller 暢銷書(shū)
empty 空的
vacant 空洞的,言之無(wú)物
bald 禿的
bare 部分赤裸
nud 全身赤裸