Silvore
铜镍耐蚀合金
🗣️ 情景例句
I need to fit a fourth operation into his schedule.
我得在他的工作表上再加第四个手术。
How much does it coat?
它值多少钱？
Predicting the future is notoriously difficult.
众所周知，预测未来是非常困难的。