✔ 最佳答案
americans usually say an-tai
british usually say an-tee
there is really no right or wrong, just regional differences. some people say to-MA-to some people say to-MAY-to (tomato)
it goes the same for 'sem-ee' and 'sem-ai' (semi) and many others.
so it's really up to you in terms of what you feel sounds better.