這一集共有 7 個學習項目，依影片順序整理成完整講義。
土壤或自然環境因缺水而變乾
寫作用途
become completely dry after losing available moisture
The garden beds dried out after three weeks without rain.
連續三週沒有下雨後，花圃的土壤乾透了。
寫作技巧
Use dry out intransitively for soil or land. Add the cause of moisture loss.
因長期壓力或過度工作而耗盡精力
寫作用途
lose energy and motivation after prolonged stress or work
Nora burned out after balancing nightly practice with two major projects.
Nora 每晚練習又同時做兩個大型專案，最後耗盡了精力。
寫作技巧
This lesson teaches personal exhaustion, not a device or light failing. Use from to name the sustained pressure that causes burnout.
某個選項完全不可能或不可接受
寫作用途
be impossible or unacceptable as an available option
Skipping the safety check is out of the question during the competition.
比賽期間完全不可能省略安全檢查。
寫作技巧
Use be out of the question to reject an option firmly. It does not mean that nobody has asked a question.
因習以為常而沒有珍惜某人或某事
寫作用途
fail to value something because it seems always available
We often take clean drinking water for granted until service stops.
我們常把乾淨飲用水視為理所當然，直到供水中斷。
寫作技巧
Place the undervalued object between take and for granted. This is neglected value, not accepting a fact.
帶出被視為顯而易見的共同前提
寫作用途
introduce a point presented as obvious or widely accepted
It goes without saying that every source needs careful verification.
不用說，每一項資料來源都需要仔細查證。
寫作技巧
Use the complete fixed opening before a clause. Reserve it for a genuinely shared assumption; overuse can make an argument sound unsupported.
大量買進某項商品或供應量
寫作用途
purchase most or all of an available supply
Rumors pushed shoppers to buy up every battery in the store.
謠言促使顧客大量買走店裡所有電池。
寫作技巧
Use buy up for purchasing a large share of an available supply. It differs from buy out, which concerns ownership or control.
在正式論述中轉入另一個討論項目
寫作用途
introduce a topic for separate consideration or comment
As to the final cost, the committee needs one more estimate.
至於最終成本，委員會還需要一份估價。
寫作技巧
Use as to at the start of a formal topic shift, followed by a noun phrase and a comma. It can sound stiff in casual conversation.