Authorities believe the collapse was due to a structural failure.

当局认为坍塌是由于结构问题而导致的。

Everybody was without a doubt terrified until eventually the lightning struck the plane's left engine and caused a rapid structural failure.

毫无疑问，每个人都被吓坏了，直到最后，闪电击中了飞机的左引擎，导致引擎结构迅速失灵。

Even the addition of a second Normal size human being wouldn't cause a structural failure, Much less a homunculus such as yourself.

就算多承重一个正常体型的人类也不会引致其床架松动的更别提像你这样的小雏形人了。