Present perfect
初中 Junior High现在完成时
🧩 词语组成解析
🗣️ 情景例句
when Molly gave him the injection.
Molly给他打针时。
Let me give you a little fatherly advice.
让我给你有点如父亲般的忠告。
All produets have to go through five checks in the whole process.
所有产品在整个生产过程中得通过五道质量检查关。