又是美丽的一天，新的开始。欢迎Faith口语课堂-天天学的新老学员们，我是Faith老师，快来快乐学英语吧。

Critical: adj. 决定性的，关键性的，危急的；批评的，批判的

The reform is at its critical stage now. 改革正处于关键阶段。

Her performance won her much critical acclaim. 她的表演大获评论界赞颂。

I know how critical your parents are. 我知道你父母有多挑剔。

Critic: n. 批评家，评论家

She is a very discerning art critic. 她是位眼光敏锐的艺术评论家。

Criticize: vt. & vi. 评论，批评

You should not criticize him so harshly in his face. 你不应该当面这么严厉地批评他。

What are you up to +（时间）: 有什么安排，打算

What are you up to tonight? 你今晚有何安排？

What are you up to tomorrow? 你明天有什么活动吗？

What are you up to this coming weekend? 这个周末你有什么计划吗？

Be up to +（somebody）: 由某人来决定，负责

If you don't feel like going, don't go, it's up to you. 如果你没心情去，就别去，你自己决定吧。

My parents say my marriage thing is entirely up to me. 我父母说我的婚姻大事完全由我自己做主。

What are you up to tomorrow night? Feel like going out with me for a movie, all right, it's up to you, whatever. 明晚有何安排吗？想和我去看电影吗？没事，你定吧，就算我没说。