Microfibers
n. 微纤维; 超细纤维（microfiber的复数形式）
🗣️ 情景例句
An oil tanker ran aground and lost about 15,000 gallons of gas into the sea.
一般油轮搁浅，把 15000 加仑油倾泻在海里了。
He has been to America.
他曾去过美国。[表示曾经有过的经验]
'Where have you been hiding?' she asked impatiently.
“你躲到哪儿去了？”她不耐烦地问，