if necessary

Gianfranco Zola - God created all things, and can uncreate them as well if necessary.

佐拉――上帝创造了万物，假如需要的，可毁掉一切。

He was instructed to inspect the cargo on the ship and detain such cargo if necessary.

奉命去检查船上所载货物并于必要时扣留该项货物。