Bafertisite
硅钡铁钛矿
🗣️ 情景例句
I've put an X next to the place where you should sign.
我已在你该签名的地方后面标示了X。
Excuse me I couldn't tell you beforehand.
对不起我不能事先告诉你。
he stooped to talk to a workman.After they had gone on,
途中，停下来与一个工人交谈，接着他们继续往前走去。