Essential convergence
[計(jì)] 本質(zhì)收斂
?? 詞語(yǔ)組成解析
essential
[?'s?n?l]
adj. 基本的;必要的;本質(zhì)的;精華的;
n. 必需品;基本要素;必不可少的東西;
essent=be存在，本質(zhì) + ial ...的 → 必要的，本質(zhì)的
convergence
[k?n'v?:d??ns]
n. 集收斂;集合;會(huì)聚;[氣]輻合;
??? 情景例句
I hope nothing is wrong.
但愿沒(méi)有事。
The two parties involved in a contract have the obligation to execute the contract.
合同雙方有義務(wù)履行合同。
Don't crowd round him, said the gate keeper.
“不要圍著他，”學(xué)校門(mén)衛(wèi)說(shuō)。