Tricky uses of 到 ("dao4")

“到”是一个多义词，可以表示空间上的到达、时间上的截止，或者作为结果补语表示动作的完成或效果，也可以表示程度或范围。其用法较为灵活，常让学习者感到棘手。

"到" is a polysemous word that can indicate spatial arrival, temporal cutoff, or serve as a result complement to indicate completion or effect of an action, as well as degree or range. Its flexible usage often poses challenges for learners.

“到”的棘手用法主要包括：1) 作为结果补语，用在动词后表示动作达到了目的或产生了结果，如“看到”、“找到”；2) 表示动作或状态达到某种程度，如“热得受不了”；3) 表示时间或空间的界限，如“从…到…”、“到…为止”；4) 在否定句中表示能力不够，如“做不到”。使用时注意语境和与其他成分的搭配。

Tricky uses of "到" mainly include: 1) As a result complement after verbs to indicate the action has achieved its goal or result, e.g., "看到" (see), "找到" (find); 2) Expressing that an action or state reaches a certain degree, e.g., "热得受不了" (so hot as to be unbearable); 3) Indicating a temporal or spatial boundary, e.g., "从…到…" (from...to...), "到…为止" (up to...); 4) In negative sentences to indicate inability, e.g., "做不到" (cannot do it). Pay attention to context and collocation with other components.