tailspin

剑桥词典

[ 可數名詞：有複數形式的名詞 通常作爲單數使用的名詞 ]
a situation in which a plane turns round and round as it falls quickly towards the ground
（飛機的）尾鏇，尾螺鏇
[ 單數名詞 ]
a situation in which something starts to fail or lose value and gets more and more out of control
失控狀態，混亂
Share prices went into a tailspin when the CEO resigned . 首蓆執行官辤職後股價直線下跌。 返回 tailspin