Level 1 - 4 - Spelling Practices

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(1) a. [chắc chắn] uneven; rough; very difficult

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(2) a. [răng cưa] saw-like; having a row of sharp or tooth-like projections

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(3) n. [silica] white or colorless vitreous insoluble solid

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(4) a. [hoài nghi] suspicious; mistrustful; marked by or given to doubt

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(5) n. [ngủ] sleep; state of inactivity or dormancy

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(6) a. [rộng] wide; generous or large in area or extent; sizable

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(7) v. [dốc] soak; make thoroughly wet

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(8) a. [nghiêm khắc] hard, harsh, or severe in manner or character; firm or unyielding

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(9) a. [vững chắc] robust; strong; substantially made or constructed

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(10) v. [vượt] surpass; exceed; pass beyond the limits of