Stepwise seal
[化] 台阶式密封
🧩 词语组成解析
a. 楼梯式的, 逐步的
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
🗣️ 情景例句
Too much alcohol will spoil your health.
喝过量的酒有损健康。
Talk of an angel and you'll hear his wings.
说到曹操，曹操就到。
for it looked on sympathetically until the drunk was out of the way before once more turning its attention to the matador.
直到他的背影消逝，才重新将注意力转向斗牛士。