embark

v. /ɪmˈbɑːrk/ C1

着手；开始从事；上船

To start to do something new or difficult.

仙境例句

Wiping his eyes, the Mock Turtle embarked on a long lesson about the Lobster Quadrille.

假海龟擦了擦眼泪，开始长篇大论地讲解龙虾四对舞。