① 「朝イチで」と言いたいときの first thing
Narrator : Emily is folding laundry with her mother one evening.
A : Emily
B : Mother
A : I need to exercise more.
B : You should join me on my morning walk sometime.
A : You know, that's a good idea! How about tomorrow?
B : Perfect! I'll see you first thing in the morning.
A : Wait. What time is "first thing"?
B : Around five. Goodnight!
A : Night! Hang on. Five?
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② 「まったく詳しくない」と大げさにいいたいときの don't know the first thing about ...
Narrator : Paul excitedly catches up with Thelma.
A : Paul
B : Thelma
A : Thelma! My hero!
B : Huh?
A : I fixed my script idea! The main alien will be a struggling artist.
B : You made it more personal!
A : Exactly. You're a genius! You should be a screenwriter.
B : I don't know the first thing about writing movies.
A : Yes, you do. Write what you know!