opening at的用法和样例：
例句
- The lady at the tourist office told me it opened at 1 pm.
旅行社的那位小姐告诉我下午一点开门。 - An opening at definite places at maturity to release or expose the contents, such as seeds from a fruit or pollen from an anther.
开裂，裂开到达成熟期时在一定的位置裂开的口子，以释放或显露出内含物，如从果实的裂口处释放出来的种子或从花粉囊中散发出的花粉
