1640s (implied in instantaneously), formed in English from Medieval Latin *instantaneus, from instantem (see instant (n.)) on model of spontaneous. Related: Instantaneousness.
双语例句
1. Death was instantaneous because both bullets hit the heart.
因为两颗子弹都击中了心脏，所以死亡是瞬间发生的。
来自柯林斯例句
2. His hospitality was instantaneous and all-embracing.
无论何时无论对谁他都是很好客的。
来自柯林斯例句
3. Death was almost instantaneous.
当时生命垂危。
来自《权威词典》
4. She accidentally swallowed the poison and death was instantaneous.
