Toothbrushing
(toothbrush 的现在分词) n. 牙刷
🗣️ 情景例句
By this time next week we shall be in London.
下星期的这个时间我们将在伦敦。
Do now waste them, but use them while they are fresh.
不要浪费了这些，要趁未落伍时善加利用。
The nomads who made these markings lived by hunting and fishing during the last Ice Age which began about 35,000 B.C.and ended about 10,000 B.C.
这些痕迹是游牧人留下的，他们生活在从公元前约35，000年到公元前10，000年的冰川期的末期，以狩猎、捕鱼为生。