unpredictability
US /ˌʌn.prɪˌdɪk.təˈbɪl.ə.t̬i/
UK /ˌʌn.prɪˌdɪk.təˈbɪl.ə.t̬i/
1.
不可預測性
the quality or fact of being unpredictable (= likely to change suddenly and without reason):
:
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Probably the only predictable thing about the British weather is its unpredictability.