- 
				           		
移走瓦砾或者阻碍物的时候要当心(特别是在空隙中),以免发生进一步的坍塌。
						        					            	
				            	Be careful how you remove debris and obstacles, especially from voids, to prevent further collapse.
								    										 
								    				            	
				 	    						                 	youdao
				            					            						        	 
		         		 		        			         		
		          					          
		          			                            				          						          				          							        	- 
				           		
移走瓦砾或者阻碍物的时候要当心(特别是在空隙中),以免发生进一步的坍塌。
						        					            	
				            	Be careful how you remove debris and obstacles, especially from voids, to prevent further collapse.
								    										 
								    				            	
				 	    						                 	youdao