supplementary例句
Supplementary oxygen is rarely needed in pressurized aircraft.
密封的飞机内很少需要补充氧气。
There is a
supplementary water supply in case the rain supply fails.
万一主水源断了,我们另外有供水的地方.
A
supplementary volume has been published containing the index.
附有索引的增补卷已经出版.