“无空闲的”常见的英文表达可以是 “fully occupied” 或 “no available slots/time”(根据具体语境调整) 。
“fully occupied” 强调时间、空间或资源等被完全占用,没有空闲。例如:The conference room is fully occupied today.(会议室今天无空闲/全被占用了。)
“no available slots/time” 更侧重于表达没有可用的时间段或空位,例如:I'm sorry, the doctor has no available slots this afternoon.(很抱歉,医生今天下午无空闲时段了。)