1. Crabs are in season now.2. Shoppers are especially active during busy seasons.
 in season busy season
1. 螃蟹正是旺季.2. 旺季時買東西的客人很多.
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 rsing sea levels.