Sigmasism
[醫] S發音困難; 濫用S音
??? 情景例句
I've invited you here for the weekend to help celebrate.
我邀請你們到這兒來渡周末， 一起慶祝。
Why don't you change your route?
你們為什么不變更路線呢？
Did you hear about the new project?
你知道那個新項目嗎？