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[医][=periaqueductal gray stimulation]导水管周围灰质刺激，兴奋作用
🗣️ 情景例句
left to right.
从左到右轮流玩。
What's your favorite musical instrument?
你最喜欢的乐器是什么？
and in most cases the captive gradually quietens down and begins to accept its food.
在大多数情况下，刚捕来的象会慢慢静下来，接着开始吃食。