- firm estimation
- 准确: accurate; exact; precise
- 的: 4次方是 The fourth power of 2 i ...
- 估计: estimate; evaluate; take sto ...
- 准确的: accurate adj; correct; definitive; delicate; exact; of accuracy; perfect; pinpoint; plumb; precise; straightforward; tracking accuracy; true; unflattering
- 精确的,准确的: exact
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