Retractability
n. 收缩核
🗣️ 情景例句
And the marketing of new toys and games.
还有新玩具和新游戏器具的行销。
He that runs fastest gets the ring.
捷足先登。
Whether a planet can support life depends on the size and brightness of its star, that is its 'sun'.
一颗行星是否能够维持生命取决于它的恒星——即它的“太阳”——的大小和亮度。