Comsol
银铅焊料, 银锡软焊料（熔点296°C）
🗣️ 情景例句
It's unsafe for girls to go out alone at night.
女孩子晚上一个人外出很危险的。
No. We're supposed to go to the movies.
不，我们决定去看电影了。
It has yet to reach its full size and strength,
虽然在这个时期人的身材、体力