新概念英语第二册习惯用语总结:Lesson 70

2.remarks n. 话语；谈论；评论 vt. 说
introductory remarks 开场白
例句：Sally was only going to make some introductory remarks but ended up giving the speech herself when the speaker come down with the flu.
萨莉原来只是想说几句开场白的，但结果却自己做了演讲，因为演讲人得了流感。

3.senstive adj．敏感的，灵敏的
be sensitive to 对…敏感
例句：Mary is sensitive to everything. It's hard to get along with her.
玛丽对一切都很敏感，和她相处很难。

4.step v. 举步，走 n. 1．脚步2．台阶3．步骤
one step at a time 一决一步，慢慢地，逐渐地（对照同义习语：little by little, bit by bit, step by step, word by word, line by line)
A: This astronomy problem is giving me a headache.
这道天文学题让我感到很头疼。
B: Try taking it one step at a time.
你试着一次做一步。