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Vocabulary Study Online by Level
Vocabulary Study Online
Vocabulary Study Online By Level (VSOBL) is a Fast, Reliable, and Handy tool to prepare English exam vocabulary. (Available for all VIP accounts: US$2/Month). It has built-in word lists: 6000 IELTS words, 6000 TOEFL words, 5000 GRE words, and 3000 SAT words. You can load them by level with one click.
  Level 4 - 4 - Spelling PracticesWord List   Previous    
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n. [ô nhiễm] contamination; undesirable state of the natural environment being contaminated


Spelling Word: pollution
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n. [cầu vồng] arc of colored light in the sky caused by the refraction of the sun's rays by rain


Spelling Word: rainbow
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n. [lạnh] cooling agent; causing cooling or freezing


Spelling Word: refrigerant
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v. [giãn] assign a new time and place for an event


Spelling Word: reschedule
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v. [sửa] amend; change or correct something, such as a piece of writing


Spelling Word: revise
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n. [cầm vỏ kiếm] the case for sword blade; sheath


Spelling Word: scabbard
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v. [biểu] denote; mean; indicate


Spelling Word: signify
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n. [muỗng] a piece of cutlery with a shallow bowl-shaped container and a handle


Spelling Word: spoon
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a. [đủ] adequate; enough; being as much as is needed


Spelling Word: sufficient
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n. [hoàng hôn] daily event of the sun sinking below the horizon


Spelling Word: sunset