S-curve
[經(jīng)] S形曲線
?? 詞語組成解析
curve
[k?v]
n. 弧線，曲線;曲線狀物;彎曲物;[棒]曲線板;
vt. 使彎曲;使成曲線;使成弧形;
vi. 彎曲;彎成曲線，彎成弧形;沿曲線行進;
adj. 彎曲的;曲線形的;
??? 情景例句
Hi! What happened?
嗨 ！怎么回事？
Are you crazy?
你瘋了嗎？
I have just received a letter from my brother, Tim.
我剛剛收到弟弟蒂姆的來信，