Gradual onset
[醫] 緩起(病)
?? 詞語組成解析
gradual
['gr?dju?l]
adj. 漸進的，漸（升）降的;傾斜度小的;逐次的，逐漸的;平緩的;
n. 彌撒升階圣歌;彌撒圣歌集;
onset
['ɑns?t]
n. 攻擊，襲擊;開始，動手;[醫]發病;
??? 情景例句
Mom,
媽，
In prosperity think of adversity.
居安思危。
Do you live near the factory?
你住在工廠附近嗎？