chuān / shàng / jiù / shēng / yī / hòu / tā / kě / yǐ / zài / shuǐ / miàn / shàng / fú / shuǐ / yì / huǐr

穿上救生衣后，他可以在水面上浮水一会儿。

After putting on a life jacket, he could float on the water for a while.