V-ERG
打开(伞等);展开(帆、旗帜等)
If you unfurl something rolled or folded such as an umbrella, sail, or flag, you open it, so that it is spread out. You can also say that it unfurls .
例句
Once outside the inner breakwater, we began to unfurl all the sails.
一驶出内防波堤,我们就扬起了所有的船帆。
...two weeks later when the leaves unfurl.
两周后叶子展开时