McCormack notes the episode underscores the critical need to diversify sources of natural gas, as well as other energy sources.
麦科马克指出，这起事件强调了将天然气供应管道以及其他能源来源多元化的必要性。
2
Traditionally, as Shillinglaw notes, the science audience has been characterised by its intellectual curiosity and the natural history audience by its expectation of emotional engagement.
On the other hand, if you take notes in the form of a learning map you will follow the natural thinking process and make leaps when your thoughts leap.