<每日短语>Sink one's teeth into something

全身心投入

例句：

她为了这个项目投入了很大的精力。他一心想要完成它！

My son seemed really bored—So I gave him a video game he could really sink his teeth into.

我儿子当时看起来很无聊，所以给了他一部能让他埋头专心玩的电子游戏。