My house is split into four levels but this is primarily my main level.

我的房子分为四层，但这主要是我的主要楼层。

A trapdoor on the main level of the stage allowed actors to appear and disappear, as if by magic.

舞台主层的活板门允许演员出现和消失， 就像变魔术一样。

Biodiversity: A Measure of Life's Variety The term 'biodiversity' encompasses three main levels: genetic diversity, species diversity, and ecosystem diversity.

生物多样性：生命多样性的衡量标准“生物多样性”一词涵盖三个主要层面：遗传多样性、物种多样性和生态系统多样性。

An electric car gets " juiced up" by being plugged into an outlet or a charging station, and they use three main levels of charging.

一辆电动汽车通过插入插座或充电站来充电，它们主要有三种级别的充电手段。

So the windows on this main level were one of the first projects I did, mainly because I needed light and I needed the air.

我最先翻新的是主楼层的窗户，主要是因为我需要明媚的光线和充足的空气。