filling section

例句：

1. 1.The filling section of the cake is very rich and creamy.
   蛋糕的填充部分非常丰富且奶油味。
2. 2. The engineer carefully filled the section of the pipe with concrete.
   工程师小心翼翼地用混凝土填充管道的部分。
3. 3. The doctor explained the medical procedure to the patient's filling section.
   医生向病人解释了医疗程序，涉及其填充部分。