三人行，必有我师(焉)

语法
Causative words (令, 让, 叫, 使）
https://mandarinbean.com/pivotal-sentence-3/
https://resources.allsetlearning.com/chinese/grammar/Causative_verbs

词汇
派, send (pinyin in tags)
https://mandarinbean.com/new-hsk-3-word-list/

Guardian:
我让林静帮我查了一些事, I had Lin Jing check out a few things for me
叫我来干吗, what did you get me here for?
你不是派人跟着吗, didn't you send people to follow them?

Me:
这首歌令我很感动。
你凭什么派我去那里？

语法
condition + （要）不然 + result "X, otherwise Y" (part b; why is this listed under 除非 again...?)
https://resources.allsetlearning.com/chinese/grammar/Expressing_%22unless%22_with_%22chufei%22

词汇
使用, use (pinyin in tags)
https://mandarinbean.com/new-hsk-2-word-list/

Guardian:
看来赵处长是有眉目了，要不然哪有时间到我们学校来参观, it seems you have something in mind, Chief Zhao, otherwise how would you have the time to come and observe our school?
我已经明确地告诉过你不要过多地接近圣器，要不然黑能量它会, I have already clearly told you not to approach the Hallows too closely, otherwise the dark energy will--
赵处长，我跟你说过，不要过多地使用圣器, Chief Zhao, I have told you not to use the Hallows too much (Shen Wei making the same point in two different personas with two different grammar points)

Me:
咱们最好不要多聊，要不然我会错过火车。
你会不会使用这个工具？