I'm the kind of person who checks to see if my fly is undone.

我是那种会检查裤前拉链是否拉上的人。

《柯林斯英汉双解大词典》

Urgh! There's a dead fly in my coffee!

呸！我的咖啡里有只死苍蝇！

《牛津词典》

I make to swing it but realize it will fly out of my hand if I do.

我想挥挥手，但意识到如果这样做的话，它会从我的手中飞出。

youdao

to take my cylinder now, and the external pressure and the internal pressure are not going to be I'm going to start with my cylinder here, I'm going to put little pegs here so it doesn't fly up.

活塞内外的，压强不相等,我们在,放上插销，以防止活塞。

麻省理工公开课 - 热力学与动力学课程节选

He changes my fly to a big chartreuse Clouser Minnow.

FORBES: Sports

Mike Bellotti and Chip Kelly's Ducks helped me reconnect with my alma mater, and I faithfully fly west with my family once a year to visit the campus and take in a game.

WSJ: Chip Kelly: Torn Between Two Birds��Oregon Ducks, Philadelphia Eagles

And by the time we reached Parrot Cay resort, I was regretting my decision to fly solo.

WSJ: Ali Wentworth on a Solo Vacation to Turks and Caicos | Traveler's Tale