Proluvium
洪积物
🗣️ 情景例句
Everyone is goofing around.
人人都在混时间。
I want to buy some traveller's checks.
我想买些旅行支票。
He showed that the average individual's sleep cycle is punctuated with peculiar bursts of eye-movements,
他指出，平常人的睡眠周期中不时伴有一阵阵奇怪的眼球队活动，