Another common warning sign is the migraine aura, which can take the form of transient visual changes, tingling, or even trouble speaking.

另一个常见的预警信头痛先兆，它可以短暂的视觉变化、刺痛感，甚至言语困难。

Horses also respond to commands, so kids who have trouble with verbal communication can learn with immediate feedback.

也会对命令做出应，所以那些言语交流有困难的孩子可以通过即时学习。

The problem with alcohol is that it also has other negative side effects, like hangover, movement difficulties, speaking and thinking problems, etc.

问题酒精会带其他不良副作用，比如宿醉、行动困难、言语和思考混乱等。