3#三思: F: b3 s3 A2 A$ K! j# _3 E5 j( g
5 b4 p& J4 h+ k+ l; }( W1 K! H
+ N2 T# \3 g* A1 n9 G9 R9 u
I will use the fourth tune with a slow glide downwards instead of the first tune, you can double check it from a native speaker or English dict for the [i:], it is not in a flat tune.