lighthearted

adj. 轻松的,快活的,爽朗的,兴高采烈的

ligature, light, light bulb, light industry, light meter, light pen, light up, light-coloured, light-fingered, light-headed, light-hearted, light-heartedly, light-heartedness, light-heavyweight, light-sensitive, light-year, lighten, lighter, lighterage, lighterman, lighthouse, lighting, lightly, lightness, lightning, lightning conductor, lightning strike, lightning-bug, lightship, lightweight, ligneous, lignite, likability, like, like a ton of bricks, like any thing, like-minded, likeable (also likable), likelihood, likely,