In a period of decline or decrease
衰减：处于正在衰退或减少的时期
“The tide was near the turn and already the day was on the wane”(&b{James Joyce})“潮水即将退去，白昼渐渐消逝”(&b{詹姆斯·乔伊丝})
“The tide was near the turn and already the day was on the wane”(&b{James Joyce})
“潮水即将退去，白昼渐渐消逝”(&b{詹姆斯·乔伊丝})