guileless

She gave him a guileless look, but he knew he couldn’t really trust her.

朝他诚恳地看了一眼，但他知道他不能正地相信。

She was the blue-eyed, black-haired gamine whose voice and guileless charm had been the key to Human victory in the Robotech War.

个蓝色眼睛，黑色头发淘气女孩，歌声和不加修饰魅力第一次宇宙大战中引领人类走向胜利关键。