tuck in ,把…折入;把…塞进;把…掖好;给(孩子)掖好被子;给…盖好被子;尽情地吃;大口地吃;例句,Come on, tuck in everyone!来呀,大家痛痛快快地吃吧!curl up,蜷缩起来;蜷缩;(叶子、纸等)卷边;例句,It's either keep moving or curl up and die.要么继续前进,要么蜷缩起来死去。