pithiness

她的演讲以简洁有力著称，每句话都切中要害。

Her speech was admired for its ___pithiness, with every sentence hitting the mark.

这位演讲者以简洁有力的风格著称，他的话语总是充满实质内容。

The speaker is known for his ___pithiness, always delivering speeches full of substance.