Many kings and emperors used silver chopsticks to see if their food was poisoned.
许多帝王用银制的筷子以检查他们的食物中是否被人投了毒。
We keep trying all four methods, but he sheer volume of rubbish we produce worldwide threatens to overwhelm us.
我们一直在试这4种方式,但是,我们在世界范围内仅产生的垃圾的量就有把我们覆盖的危险。