He told us to have a mental preparation.

让我们要有一个思想准备。

Have that learning attitude for the mental preparation.

要有积极的学习态度，期望学到新东西。

Because mental preparation is not glamorous or easy to videotape.

因为精神准备并不迷人或者也不易于录制。

Advanced mental preparation should make it easier to speak from your heart.

预先的准备，可能让你想说的心里话更加顺畅。

Solid mental preparation is the first step in being able to speak like a leader.

要展现出领导者说话的样子，扎实的心理准备是第一步。