Singles
n. 单打比赛
🗣️ 情景例句
No pain, no gain.
只有付出，才有收获！（不劳则无获！）
They imagine, what he is doing.
她们在猜他所做的事。
He must, for example, perceive an egg as a simple single solid shape,
以鸟蛋为例，观赏者必须感觉到它是一个单一的实体形态，