1️⃣3️⃣Pinpoint 📝英英释义：find or identify with great accuracy or precision. 精确地指出、说明 ✍🏻实用例句：They were unable to pinpoint the source of the noise. 1️⃣4️⃣Trade-off 📝英英释义：a kind of compromise that involves giving up something in return for getting something else. 权衡、取舍 ✍🏻实用例句：There is a trade-off between doing the job accurately and doing it quickly. 1️⃣5️⃣Bottom line 📝英英释义：the fundamental and most important factor. 底线、要旨 ✍🏻实用例句：We’ve had some success this year, but the bottom line is that the business is still losing money. 1️⃣6️⃣Breakthrough 📝英英释义：an important discovery or event that helps to improve a situation or provide an answer to a problem. 突破 ✍🏻实用例句：The development of digital imagery was a breakthrough in computer technology. 🦙我是羊驼学长，大三英专生，期待你的关🐷，我会持续为你分享地道表达和英语资源[飞吻R]！