Nabit
硝甘炸药
🗣️ 情景例句
Michelle is quite right. Michelle
非常对。
Pardon me, but I was wondering if you could break a one.
对不起，不知你是否能兑开1元钱。
so every so often a sample is obtained with a coring bit.
因此时常要用取芯钻头取样。