It is easily constructed and creates a lot of heat, cleanly efficiently and safely.

这是很容易构造，并创建了大量的热量，清洁高效和安全。

youdao

It is easily constructed and creates a lot of heat, cleanly efficiently and safely.

这是很容易构造，并创建了大量的热量，清洁高效和安全。

youdao