Base eatalysis
[机] 碱催(化)作用
🧩 词语组成解析
base
[bes]
n. 基础;基地;根据;基数（如十进制的10 和二进制的2）;
vt. 基于;把…建立在;把…放在或设在（基地）;把…置于底座（或基座）上;
adj. 卑鄙的;低级的;贱的，劣的;庶生的;
bas,base 表示”低下,基础”
🗣️ 情景例句
But your L C must reach us 30 days before delivery.
但交货前30天，我们必须要收到你们的信用证。
He was at a loss for words.
他不知道该说什么好。
Winter was coming on and the hills threatened the surrounding villages with destruction, for heavy rain would not only wash away the soil but would cause serious floods as well.
冬季即将来临，这些山丘对周围的村庄具有毁灭性的威胁，因为大雨不仅会冲走土壤，而且还会引起严重的水灾。