1. 坚持：21.be engaged in... 从事于 | 22.cling to... 坚持 | 1.be known as 以......而著名

2. 粘住;依附;坚持：adhere to粘附,胶着;坚持 | cling to粘住;依附;坚持 | collide with抵触

3. 坚持,墨守;依靠,依恋：clerical supplies文具供应 | cling to坚持,墨守;依靠,依恋 | closed-circuit television闭路电视

verb

1. hold firmly, usually with one's hands

e.g. She clutched my arm when she got scared

Synonym: hold closehold tightclutch