onset n.
釋義：the beginning of something, especially something bad
“onset”是個名詞，意思是“開始”椰苟，常常可以用來完美替換常見的“beginning”丐一。onset 表示“開始”時，后面常接有負向含義的名詞，比如疾病叮喳、經(jīng)濟蕭條睁宰、戰(zhàn)爭等。
例① 戰(zhàn)爭開始后嘱么，犯罪率激增狮含。
Since the onset of the war, the crime rate has skyrocketed.
例② 有證據(jù)表明，會說一門外語有助于推遲老年性癡呆（dementia）。
Evidence shows that speaking a second language can help delay the onset of dementia.
例③最近的《經(jīng)濟學(xué)人》中也出現(xiàn)了 onset：
The study adds substantial weight to the evidence linking cannabis to the onset of psychosis.（“the onset of psychosis”指“精神疾病的開端”几迄，這句話是說研究表明吸食大麻很有可能導(dǎo)致患上精神疾参盗）
翻譯：經(jīng)濟危機爆發(fā)后，投資面貌發(fā)生了巨大變化映胁。
Since the onset of the financial crisis, the investment has been changed dramatically.
（參考翻譯：The investment landscape has been changed tremendously since the onset of the financial crisis.）
