1
X, viz. Y
viz. 后常接具体的解释或列举，常用于正式书面语。
He studied the three sciences, viz. physics, chemistry, and biology.
他研究了这三门科学，即物理、化学和生物。
即；也就是；换言之
先理解核心含义，再看它在真实句子里的用法。
即；也就是；换言之
namely; that is to say; specifically
He studied the three sciences, viz. physics, chemistry, and biology.
他研究了这三门科学，即物理、化学和生物。
即,也就是说,具体而言,举例说明
Videlicet: namely, to wit, that is to say, specifically, as an illustration.
She prefers simple food, viz, rice and grilled vegetables.
她喜欢简单的食物，即米饭和烤蔬菜。
Several fruits, viz, apples, oranges, and pears, are in the basket.
篮子里有几种水果，即苹果、橙子和梨。
He had a clear goal, viz, to finish the marathon.
他有一个明确的目标，也就是完成马拉松。
viz. 后常接具体的解释或列举，常用于正式书面语。
He studied the three sciences, viz. physics, chemistry, and biology.
他研究了这三门科学，即物理、化学和生物。
Viz., the company's profits have increased significantly.
即，公司的利润大幅增长了。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
即；也就是
Two factors matter, viz., cost and quality.
两个因素很重要，即成本和品质。
即以下所述；也就是下面这些
The contract lists three key terms, viz. the following: payment, delivery, and liability.
合同列出了三个关键条款，即以下各项：付款、交付和责任。
也就是说；即
The researchers identified one major flaw, viz. that the sample size was too small.
研究人员发现了一个主要缺陷，即样本量太小。
Use viz. naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
viz 读作 /vɪz/，像 'vis'（看）：它引出具体说明，让你'看见'即、也就是说 的具体内容。
语域：formal 常见场景：正式书面语、学术或法律文书 “viz”是拉丁语 videlicet 的缩写，通常只出现在正式书面语中，多用于学术、法律或说明性文本里，表示“即、也就是”。日常口语中很少使用。
书面语，主要用于引出具体说明或列举
Dictionary facts from ECDICT, WIKTIONARY.