动词 stand by:

1. not act or do anything

2. be available or ready for a certain function or service

3. be loyal to

standingn.持续；地位adj.永久的；不动的；直立的；不流动的动词stand的现在分词.standing sale立木销售standing mill立式磨standing corn未割的庄稼standing jump立定跳远standing beam架梁standing tree立木standing post立杆standing mute保持沉默standing pass原地传球standing fire井下经年冒烟的火