n.蝰蛇，宽蛇(英国仅有的一种毒蛇，背部有菱形斑)

原形：adder复数：adders

The accountant made an error in the addition, underestimating the total by a thousand dollars.
会计在加法中犯了一个错误，低估了总数一千美元。
She's an expert adder, able to calculate sums in her head with great speed and accuracy.
她是个计算高手，能在头脑中快速准确地进行加法运算。
The teacher asked the students to add up the numbers on their worksheets.
老师让学生们把工作表上的数字加起来。
He's adding new features to his software program to make it more user-friendly.
他正在向他的软件程序添加新功能，使其更易于使用。
The library is expanding its collection by adding more books on diverse subjects.
图书馆通过增加更多不同主题的书籍来扩展其藏书。
The chef added a pinch of salt to enhance the flavor of the soup.
厨师加了一撮盐来增强汤的味道。
We need to add fuel to the car before embarking on a long journey.
在开始长途旅行之前，我们需要给汽车加油。
She added her signature to the contract, finalizing the agreement.
她在合同上签了字，最终确定了协议。
The decorator suggested adding a few decorative pillows to the couch for visual appeal.
装饰师建议在沙发上添加几个装饰枕头以增加视觉吸引力。
The environmentalist advocated for adding more green spaces in the city to improve air quality.
环保主义者主张在城市中增加更多的绿色空间以改善空气质量。