Heptad
n. 七个, 成七的一组, 七价原子\\n[化] 七价物; 七价的
🗣️ 情景例句
Please go over the draft of the contract.
请再看一下草案吧。
Provided you can offer favorable quotations and guarantee delivery within four weeks from receipt of order, we will place regular orders with you.
贵方若能报优惠价并保证在收到定单后4周内交货，我方将定期订购。
If you hate science stories, you are unlikely to enjoy reading them in English.
如果你不喜欢读科学小品，你很可能也不会喜欢读英文的这类图书。