小的时候，年少轻狂，任何情绪从来不会伪装，都写在脸上，随着年龄的变大，我们经受了生活的各种磨砺，越来越懂得收敛自己的情绪，有什么都藏在心里。

    好，今天的知识点来了：

    1.be written all over one's face

    全都写在某人脸上了

    【解释】

    If a feeling is written all over your face,

    it is very obvious to other people from your expression.

    【例句】

    Jenny said she wasn't scared / before，

    she went into the haunted house,

    but terror was written all over her face.

    珍妮说她走进鬼屋之前并不害怕，

    但恐惧全写她脸上了。

    2.have mixed feelings about...

    喜忧参半；百感交集；

    (感情等) 矛盾复杂的

    【解释】

    If you have mixed feelings about something or someone,

    you feel uncertain about them ，

    because you can see both good and bad points about them.

    【例句】

    I have mixed feelings about moving to another city.

    对于搬到另一座城市、我百感交集。

    3.be as hard as nails

    铁石心肠；冷酷无情；毫无惧色

    【解释】

    A person who is (as) hard as nails is unsentimental，

    and shows no sympathy or fear.

    【例句】

    Don't expect any sympathy from him.

    He's as hard as nails.

    别指望他会同情你，他很铁石心肠。