... 他经常在语法上犯错误 He often on grammar mistakes 我总是在语法上犯错误 I'm always on grammar mistakes 在语法层面上 At The Syntax Level ...
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At a high level, you see the familiar "update... set... where..." syntax of an SQL update statement.
SQL update语句的总体结构仍然是大家熟悉的“update…set…。where…”语法。
At the lowest level, the parser checks for syntax conformance.
最低层上解析器检查是否存在语法错误。
At the hand-authoring level, the tradeoff between losing some expressivity of syntax and getting editing tool support is worth it.
在手工编辑（hand-authoring）级别上，失去语法的部分表达能力和获得编辑工具支持之间的折衷是值得的。
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