求助 applescript 语法问题， Chat-GPT 也无法解决

[AlanZ1997]

这个脚本运行时提示语法错误 accept this_chat 预期是行的结尾等等，却找到标识符。

using terms from application "Messages"
	on «event ichthe06» this_message given «class hepr»:this_buddy, «class hect»:this_chat
		set this_name to the name of this_buddy
		if the name of this_buddy is in {"张波波"} then
			set the greeting_name to the first name of this_buddy
			if the greeting_name is "" then set the greeting_name to this_name
			accept this_chat
			if the content of this_message is "hello" then
				tell application "QuickTime Player"
					activate
					new movie recording
					start document 1
					set miniaturized of window 1 to true
					delay 2 -- 延迟 2 秒以确保录制开始
					tell application "System Events"
						keystroke "q" using {command down, control down} -- 锁屏
					end tell
				end tell
			end if
		end if
	end «event ichthe06»
end using terms from