本期给大家简单汇总了一下2021年托福考试当中的高频词汇，这些都是比较有代表性的单词，希望对备考的同学们有所帮助！

1. Cluster n. 簇拥
选项同义词：group
例句：The plant bears its flowers in clusters.
这种植物开花成簇。

2. Persistently adj. 持续地
选项同义词：insistently
例句：The allegations have been persistently denied by ministers.
这些说法一次次地被部长们否认。

3. Aggregation n. 聚集
选项同义词：accumulation    
例句：The aggregation of wealth by small groups of families caused social unrest.
少数家庭聚集财富造成了社会动荡。

4. Augment v. 增加
选项同义词：addto     
例句：While searching for a way to augment the family income, she began making dolls.
为求增加家庭收入，她开始做起了玩具娃娃。

5. Annihilate v. 消灭
选项同义词：destroy  
例句：The human race has enough weapons to annihilate itself.
人类有足够的武器灭绝自己。

6. Ambiguous adj. 模糊的
选项同义词：unclear   
例句：His role has always been ambiguous.
他的角色一直不明确。

7. Conspicuous adj. 显而易见的
选项同义词：easilynoticed     
例句：The advertisements were all posted in a conspicuous place.
广告都贴在了显眼的地方。

8. Contradictory adj. 相互矛盾的
选项同义词：conflicting   
例句：We are faced with two apparently contradictory statements.
我们面前这两种说法显然是矛盾的。

9. Cumulatively adv. 累计地
选项同义词：altogether    
例句：At first, the drug does no harm, but cumulatively its effects are bad.
这药开始对人没有害处，但连续服用后果就坏了。

10.Constituentn. 构成部分
选项同义词：component
例句：Caffeine is the active constituent of drinks such as tea and coffee.
咖啡因是茶和咖啡这类饮品的活性成分。