监视: to monitor, to keep a close watch over, surveillance...
公约: convention (i.e. international agreement)...
等候: to wait, to wait for...
搜救: search and rescue...
储备: reserves, to store up...
出去: to go out...
送别: to farewell...
学生: student, schoolchild...
递交: to present, to give, to hand over, to hand in, to lay before...
垫子: cushion, mat, pad...
