Backstand
张紧座; 后座; 支撑结构
🗣️ 情景例句
Scene: Tom and his wife have invited Carl and David for dinner.
场景：汤姆和他夫人邀请卡尔和大卫吃晚饭。
Eat to live, but not live to eat.
吃饭是为了生存，但生存不是为了吃饭。
Half an hour? That's too long! Is there a bus?
半小时？那太久了！有公共汽车吗？