🧩 词语组成解析
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
tiger
['taɪɡɚ]
n. 老虎;各种猫科动物;凶恶的人，虎狼之徒;
🗣️ 情景例句
Am I glad to see you!
我看到你， 真的很高兴！
Keep thing seven years and you will find a use for it.
备而不用。
Then knowledge began to be accumulated according to a systematic plan.
于是，知识便开始有系统有计划地积累起来。