a roomful of guests.的用法和樣例：
例句
- If we travel, clean up after we set out, not to come back to face a roomful of mosquitoes and insects.
如果要出差，清理之后再出門(mén)，不要回來(lái)面對一屋子的蚊子和蟲(chóng)子。 - Once you have sung unaccompanied in front of a roomful of strangers, nothing should faze you.
一旦你能在一屋子的陌生人面前無(wú)伴奏地演唱，就沒(méi)有什么可擔心的了。
