crisis
/ˈkraɪsɪs/noun
(pl. crises/-siːz/)
1- a time of intense difficulty or danger危急时刻; 危机：
the current economic crisis
当前的经济危机
mass noun the monarchy was in crisis.君主政体危在旦夕。
1.1
- a time when a difficult or important decision must be made决定性时刻; 关键时刻：
as modifier the situation has reached crisis point.形势已到了关键时刻。
1.2
- the turning point of a disease when an important change takes place, indicating either recovery or death（病情的）转折点; 危象。
词源
late Middle English (denoting the turning point of a disease)：medical Latin, from Greek krisis 'decision', from krinein 'decide'. The general sense 'decisive point' dates from the early 17th cent.