语法第 160 / 178 课
N1 Grammar: Doubt, Purpose, and Inability
Expressions for doubt, lack of knowledge, or uncertainty. Express intentions, firm purposes, or the desire to achieve something.
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语法第 160 / 178 课
Expressions for doubt, lack of knowledge, or uncertainty. Express intentions, firm purposes, or the desire to achieve something.
Premium 可解锁所有学习包中的课程、练习题和闪卡。
升级至高级版