Quadrupoles
(quadrupole 的复数) [化] 四极
🗣️ 情景例句
When does the next train leave for New York?
到纽约的下一趟火车什么时候开车？
He is now out of touch with his old friends.
他现在已经没有和他过去的朋友联系了。
Don't you think it necessary to have a close study of the contract to avoid anything missing?
你不觉得应该仔细检查一下合同，以免遗漏什么吗？