You’ll likely have more success starting a Madagascar dragon tree from cuttings than seeds. The seeds can be a bit more temperamental, and they may not germinate well. If you’re going to keep the cutting indoors, this can be done at any time of year. If you want to replicate the tree’s natural growing conditions, however, propagate in summer. Pick a stem that has a nice, full growth sprouting out at the top. It should be an established stem that didn’t just poke up from the soil. It also needs to be long enough to produce a shoot. Cut a piece that’s about 20 to 30 centimetres (7.9 to 11.8 in) long. Leave the top still attached, as the foliage will help increase your plant's nutrient availability. Leaves allow more potential for photosynthesis to occur. Put the side of the stem with the straight-across cut face down in about 3 to 5 inches (7.6 to 12.7 cm) of distilled water. To prevent bacterial growth, change out the water every 5-7 days. Ensure that it stays at the same level by topping it off in between changes if you need to. Your heat source should come up from below your plant, such as a heat lamp. Using heat and a rooting hormone will increase the chances that your efforts are successful. Follow all of the directions for using your rooting hormone. While it might take a while for you to see new sprouts at the top of the stem, roots should start to develop after only 10-20 days. They’ll look like little white curls. These rooted stems can then be transferred to individual containers filled with houseplant potting soil.

How would you rephrase that briefly using Chinese?
扦插成年龙血树的枝条更易繁殖成功。 选取去年长出的强健枝条。 从茎的底部横切截断。 把茎底插入盛有水的容器里。 供暖并使用生根激素。 预计数周后可见生根。