The tent was protected with a tripwire but it didn't stop the bear getting inside as they slept.
被保护的帐篷与旅行线，但它并没有停止，因为他们承担越来越里面睡。
2
Benjamin: my tripwire wasn't dental floss, it was fishing line tied to my mess kit balanced on a ledge. Very effective actually.
本杰明：我的陷阱不是牙线，那是钓鱼线，连着放在边上的炊事餐具。事实上非常有效。
3
Or more specifically, when will the US cross the tripwire and try to prevent China from protecting its resources, and will the US do it deliberately to try to keep China down.