Triheptin
三庚精, 甘油三庚酸酯
🗣️ 情景例句
What are you up to?
你呢？你怎样？
Compared to the previous model, our new model is less expensive and easier to use.
与旧型机比较我们的新型价格便宜且更容易操作。
it cannot judge distances, depths.
不会判断距离和深度。