Trail balloon
A test of someone’s or the public’s reaction
探测风向和风速的气球，用来试测舆论反应的言论
- The editorial was a trail balloon to test the public's reaction to a change in the school day.
这篇社论是要试探出公众对于变更校历的反应。
Back and forth
Dialogue, negotiations
两个或两个以上的人交替分享他们观点
- I think we should have a little back and forth before we make a final decision.
在我们做出最终决定之前，我想我们应该来回说一下各自的观点。
An offer one can’t refuse
An extremely attractive offer
无法拒绝的提议，极有吸引力的提议
- I’m gonna make him an offer he can’t refuse.
我将给他一个他无法拒绝的条件.
Come to terms with
Feel acceptance toward something bad that has happened
逐渐接受（常指所爱之人的死）
- I think he's still coming to terms with the death of his wife.
我觉得他还没有完全接受妻子去世的事实。
Draw a line in the sand
Issue an ultimatum; specify an absolute limit in a conflict
发出最后通牒；在冲突中规定绝对限度
- If the global drift towards a more restrictive internet is to be halted, now is the time to draw a line in the sand.
若要阻止这个世界陷入加强互联网限制的歧途，现在就必须划定底线。
Drive a hard bargain
To negotiate effectively
极力讨价还价
- You drive a hard bargain, but I think we can make a deal.
你的价钱很难杀，不过我想我们的生意是可以谈得成的。
Give and take
Negotiations, the process of compromise
互相忍让；相互让步；双方互相迁就
- In every friendship there has to be some give and take.
任何一份友谊都需要双方相互忍让。
Sweeten the deal
Add something to an offer during a negotiation
（交易中）给更多好处
- She had been careful to sweeten the deal with a rather generous cash payment.
她一直甚为审慎，想要通过支付大量现金促成这笔交易。
Stand one’s ground
Refuse to back down; insist on one’s position
坚守阵地；坚持立场，拒不让步
- The battalion stood its ground in the face of repeated attacks.
这个营面对一轮轮进攻始终坚守阵地。
