@DailyJLee I think it's more bistable. If you're containing on your own that includes border controls, which is effectively economic sanctions on yourself. If most contain and one doesn't, then border controls only needed on the non-container = targeted sanctions.
@DailyJLee我觉得它更稳定。如果你独自控制，包括边境控制，这实际上是对你自己的经济制裁。如果大多数集装箱都有，而一个集装箱没有，那么边境控制只需要对非集装箱进行=有针对性的制裁。