自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
V-ERG 扣牢;系牢 When you fasten something, you close it by means of buttons or a strap, or some other device. If something fastens with buttons or straps, you can close it in this way.
She got quickly into her Mini and fastened the seat-belt...
她迅速钻进她的 Mini 车里并系紧安全带。
Her long fair hair was fastened at the nape of her neck by an elastic band.
VERB (用绳、带等)系上，拴上 If you fasten one thing to another, you attach the first thing to the second, for example with a piece of string or tape.
There were no instructions on how to fasten the carrying strap to the box...
Mamma fastened the picture on the wall.
V-ERG (使)(注意力)集中于… If someone or something fastens your attention on a particular thing or if your attention fastens on it, you start to concentrate on it rather than on anything else.
More and more her memory and all her thoughts fastened on one event...
The discovery has fastened public attention on the possibilities of DNA analysis for resolving mysteries.
这一发现将公众的注意力集中在用 DNA 分析技术来解开谜团的可能性上。
VERB 集中注意力于;专注于 If someone or something fastens on a particular thing, they start to concentrate on it.
My mind attempted to calm itself by fastening on this trivial detail...
It's a gross oversimplification to fasten on to the red deer as a threat to the environment.
VERB 纠缠;缠住 If someone fastens on you, they keep following, talking to, or staying with you, when you want them to go away.
He's fastening on that poor girl like a leech.