1. Let's face it 面對現實吧
例句：
A: I have been looking for my bicycle for a few days, someone stole it. 有人偷了我的自行車，我都找了幾天了。
B: Let’s face it, you will never find it. 面對現實吧，你不可能找回來了。
2. Let's get started. / Let's begin. 我們開始幹吧，我們開始吧
例句：
A: I just got another brilliant idea; let’s talk about our plan again. 我又想到了一個好主意，讓我們再談談我們的計劃。
B: Well, don't just talk, let's get started. 好了，不要光談了，讓我們動手幹吧。
3. I'm really dead. 我真的要累死了.
例句：主要用於描述自己的感受
A: After a long day of work, I am really dead. 工作了一整天，我真的要累死了。
B: Poor you, maybe a hot shower will relax you. 可憐的傢伙，也許洗個熱水澡能讓你輕鬆一些。
4. It’s a deal 一言為定；好，就這麼定了
例句：
A: What a lovely day today! 今天天氣真好！
B: Certainly, we'll have fine weather for the next few days. 是呀，接下來幾天天氣都很好。
A: Great, let’s go to the beach this weekend. 太好了，我們週末去海邊吧。
B: It's a deal. 好，就這麼說定了。
5. We had better be off. 我們該走了
had better 是固定用法，表示：最好怎麼樣，應該怎麼樣。可將其視為“情態”動詞。
例句：
It's getting late. We'd better be off. 時候不早了，我們應該走了。
She had better go to the bank this afternoon. 她最好今天下午就去銀行。
You’d better not go to the party tomorrow night. 你明天晚上最好不要去參加聚會。
6. I've done my best. / I have tried my best. 我已經盡力了，竭盡所能了
口語中表達“努力”最常用的套話
例句：
A: Have you got your TOEFL result? 你拿到了托福考試結果了嗎？
B: Yes, I just got it this morning. I didn’t pass the test. 今天上午拿到了，我沒有通過。
A: You have done your best. 你已經盡力了。
I have tried my best to find a good job in London, but so far, I haven’t got any offer.
我竭盡所能地想在倫敦找一份好工作，但到目前為止，我還沒有找到。