Jackladder
n. 木踏板绳梯, 跳板
🗣️ 情景例句
Bye-bye.
再见。
Knowledge is a treasure, but practice is the key to it.
知识是一座宝库，实践是打开宝库的钥匙。
You mustn't move someone if they are badly hurt.
让她留在原地。如果有人受了重伤，你不能动他。