Biofilms
n. 生物膜（biofilm的复数）
🗣️ 情景例句
I'm sure everyone will be very happy with these gifts.
相信他们一定会喜欢这些礼物的。
In case of fire, keep your head.
万一发生火灾，保持镇定。
Yes, here you go.
喏，就是这个。