Tis
abbr. 热成像系统（Imaging Thermal System）；[美]技术情报服务处（Technical Information Service）
🗣️ 情景例句
I don't know. The baby-sitter says she has a stomachache,
我不知道。临时保姆说她肚子疼.
I think it's going to rain tomorrow.
我认为明天将会下雨。
Though a number of descents have been made, much of it still remains to be explored.
人们多次进入洞内探险，但至今尚有不少东西有待勘探。