Van der velden's test
[医] 范德韦耳登氏试验(检胃液游离盐酸)
🧩 词语组成解析
van
[væn]
n. 先锋;厢式货车;增值网;先驱，前驱，领袖，领导人;
vt. 用车搬运;
prep. 〈外〉同“from”;
abbr. 区分编码规则（Distinguished Encoding Rules）
🗣️ 情景例句
then you've got to smile first.
你就得先笑一笑。
Please don't forget to say goodbye to the rest of the family for me.
请别忘了代我向你的家人告别。
If a nation is essentially disunited, it is left to the government to hold it together.
如果一个国家实际上处于分裂状态，使之联合起来就是政府的事了。