他对我们的帮助表示了热情的感谢。

He offered ___effusive thanks for our help.

她对我们给予的帮助表达了热情洋溢的感谢。

She gave us an ___effusive 'thank you' for our help.

火山喷发后形成的熔岩台地主要由喷出岩构成。

The lava plateau was primarily composed of ___effusive rocks after the volcanic eruption.