换一换 
https://www.youtube.com/watch?v=adHOzr_uHkc 原标题：[TETR.IO] How to Counter EVERY Opener 原简介： Important points from metallicLurker: "Some additional details in countering openers: • The closest TSD opener to SDPC is any Albatross variant. Be aware of screenwatching opponents, you want to cancel their TSS, not just send them clean garbage for them to accept. • Some people use goofy TSS openers like Last or Sailboat. You're less likely to know a TSD counter for these (Mortar TSD?? • Don't send clean to MS2 either. You don't want to risk getting counterspiked to death by a TD-downstack-Tetris sequence."
