guarantee學測 L4KK [ˌgɛrəˈnti] ｜ /ˌgɛrəˈnti/
保證；擔保·保證書；保固·代人擔保；保證人責任
教科書必考字，保固與擔保責任常被混用
The shop guarantees your money back if the shoes don't fit.
如果鞋子不合腳，這家店保證退你錢。
一個畫面：站崗守住承諾
站哨守約衛兵守在門口，承諾一定兌現
白紙黑字保固卡寫明壞了就修或換
代為扛責有人簽名，替你擔下欠款
義項
站哨保證B2verb保證；擔保
I can't guarantee that you will pass the exam, but I promise to help you.
我無法保證你會通過考試，但我答應會幫你。
guarantee successguarantee safety
保固卡片B2noun保證書；保固
The washing machine comes with a two-year guarantee.
這台洗衣機附有兩年的保固。
a two-year guaranteea money-back guarantee
簽名擔保B2noun代人擔保；保證人責任
I needed a guarantee from my father before renting the apartment.
在租這間公寓前，我需要爸爸提供擔保。
provide a guaranteeact as a guarantee
片語
money-back guarantee退錢保證 →不滿意就退費
guarantee success包準成功 →保證一定會成功
under guarantee保固期內 →產品還在保固期
I guarantee it.掛保證 →我保證，錯不了
你會不會這樣說？
The shop ___ a full refund if you're not happy. (guarantee / guarantees)
看答案
guarantees
shop 是第三人稱單數，動詞要加 -s，這裡是「保證」的動詞用法。
'The washing machine comes with a two-year guarantee.' 這裡的 guarantee 詞性是？(A) 名詞 (B) 動詞
看答案
(A)
前面有 a...two-year 修飾，是名詞用法，指保固期限。
字族
guaranteed 保證的；必然的・guarantor 保證人；擔保人