1. This pair of sharp scissors has a pointed end.2. This tall building has a thin, pointed top.
 Pointed sharppointed 是指某樣東西是尖的; sharp 是指某個東西很銳利
這是一個連環問題: 燃燒石油導致二氧化碳增加，二氧化碳增加導致溫室效應，溫室效應導致冰層融化、海平面上升。 (請填空)
This is a chain of problems. Burning oil leads to increase in carbon dioxide, which leads to the greenhouse effect, which leads to melting of glaciers, which leads to ising sea levels.